Mods for AC EVO

BMW M3 E46 CSL GT3

The BMW M3 E46 CSL GT3 is the Digital Drivers race build of the M3 CSL to GT3 specification on the car's standard body. It is powered by the P58 twin-turbo straight six of the BMW M4 GT3 with its sequential six-speed gearbox, race clutch and limited-slip differential, and runs GT3 brakes, Pirelli GT3 slicks and Nitron R3 three-way coilovers.

1 stage

33 driversv58 of 10/31/2026155 MB in the game3 designs

PS: 541
Nm: 695
kg with driver, 50.3 % front: 1,265
km/h top speed (est.): 295
Real build cost: approx. €526,000

GT3

what this stage is about

Set up for the Nordschleife, after the N24 and NLS GT3 cars.

10 mm more ride height (80 / 95 mm) for the jumps at Flugplatz and Pflanzgarten and the compression in the Fuchsröhre.
Springs 90 / 95 N/mm and 35 % less high-speed bump damping so kerbs and crests do not unsettle the car, while the low-speed damping holds the platform.
Anti-roll bars 24,000 / 37,500 N/m put more load on the inside rear tyre for traction out of slow corners.
Wing +3 with the flat floor: about 430 kg of downforce at 200 km/h, 38.5 % of it on the front axle.
60 l of fuel for about six laps, TC 4, brake bias 71.0 %.

Built on real data

no fantasy figures: reference, parts and measurements behind this car

The reference

BMW M4 GT3

BMW's M4 GT3 race car, whose P58 twin-turbo straight six, sequential gearbox, clutch and differential this car runs as Kunos' data on the CSL's standard body. BMW: up to 590 hp and 700 Nm, typically 540-550 hp in racing trim.

press.bmwgroup.comMaker's figures

The parts

7real products

from 6 makers: APR Performance, Autopower, BMW M Motorsport, BimmerWorld, HARD Motorsport and others.

10 items with list price and source
17 items marked as estimates
15 sources linked

The measurements

59laps with telemetry

driven in this car by club drivers and shared from the app of their own free will. The setups marked “measured” take tyre pressures, fuel per lap and brake bias from laps like these.

Engine and driveline: Kunos' BMW M4 GT3 data unchanged, about 540 PS at the curve's peak, inside BMW's 540-550 hp in racing trim
APR Performance's published lift-to-drag ratio of 8.8 for the GTC-300 sets the rear wing's drag
MoTeC telemetry on the Nordschleife (2026-10-04): 112.5 km/h at 7,000 rpm in 1st with the M4 GT3 gearbox, the rolling radius behind every gear speed

verified (maker, dyno, measured)from the game's own datasource linkedour estimate· the same evidence as under Sources on the car’s page in the game

Power and torque

from the built car, not from a brochure

Power over rpm

Power over rpm
rpm	PS
1,000	57.6
1,250	75
1,500	93.3
1,750	112.7
2,000	131.5
2,250	155.2
2,500	181.8
2,750	210.8
3,000	241.1
3,250	271
3,500	300.8
3,750	331.7
4,000	363.8
4,250	397
4,500	429.3
4,750	461.7
5,000	494.8
5,250	510.7
5,500	525.8
5,750	540.2
6,000	533
6,250	526.9
6,500	520.3
6,750	517.3
7,000	512.6

Torque over rpm

Torque over rpm
rpm	Nm
1,000	404.9
1,250	421.5
1,500	436.9
1,750	452.3
2,000	461.7
2,250	484.6
2,500	510.6
2,750	538.4
3,000	564.5
3,250	585.7
3,500	603.6
3,750	621.3
4,000	638.8
4,250	656.1
4,500	670
4,750	682.6
5,000	695.1
5,250	683.2
5,500	671.5
5,750	659.8
6,000	624
6,250	592.2
6,500	562.2
6,750	538.2
7,000	514.3

Fitted

what the stage has on board in the game

P58 Twin-Turbo Engine and M4 GT3 DrivelineBMW M Motorsport · P58 (M4 GT3)3.0-litre straight six with the M4 GT3's sequential six-speed, race clutch, limited-slip differential and soundFrom the game's data
Sequential Six-Speed, 2.68 Final DriveM4 GT3 ratios, 2.68 final drive: 110 km/h in 1st, 297 km/h in 6th at 7,000 rpmOur estimate
Nitron R3 3-Way CoiloversNitron · R3Race dampers with 24 rebound, 26 low- and 16 high-speed bump clicks; race springs set per variantMaker's figures
GT3 Race Brake SystemThe M4 GT3's brakes and race pads: about 8,400 Nm at the wheels, bias adjustable from 60 to 80 %From the game's data
APR GTC-300 67in Rear Wing (E46 Spec)APR Performance · GTC-300 67" E46 spec (AS-106743)1,702 mm carbon wing with a 305-254 mm 3D chord, 330 mm aluminium pedestals, 12.7 mm Gurney flapMaker's figures
HARD Motorsport Splitter with APR RodsHARD Motorsport · E46 M3 front aero splitter / undertray6.35 mm aluminium composite, 1,695 mm wide, on four 10 mm stainless support rodsMaker's figures
Carbon Rear Diffuser (BimmerWorld Style)BimmerWorld · E46 M3 rear diffuser (style)3 mm carbon, 1,400 mm wide, 7-degree exit, four strakes, cut-outs for the twin tailpipesOur estimate
GT3 Flat FloorDigital Drivers · GT3 flat floor (physics, under the car)Flat carbon floor from the splitter to the diffuser; physics only, no visible part (it sits under the car)Our estimate
M4 GT3 Steering WheelBMW M Motorsport · M4 GT3 steering wheelGT3 wheel with switch panel and the M4 GT3's paddle shiftersFrom the game's data
Bolt-On Hood Louvre PanelsTwo aluminium louvre panels over cut-outs in the rear of the hood, blackOur estimate
Autopower 4-Point Race Roll BarAutopower · Race Roll Bar, E46 coupé (60904)Bolt-in, 1.75 x 0.120 in DOM steel tube, diagonal, harness bar and rear staysMaker's figures
Column-Mounted Race Display with Shift Lights7-inch display behind the wheel with the M4 GT3 race and warm-up pages, ten shift lights above the screenOur estimate

Selectable in the setup

Öhlins Road & Track Coilovers · ÖhlinsKit BMS MI30S1: 70 / 110 N/mm springs, rebound adjustable in 20 clicks, about 30 mm lowerSuspension

KW Clubsport 2-Way Coilovers · KWKit 35220825: 120 N/mm linear front spring, 16 rebound and 12 bump clicks, 20-40 mm lowerSuspension

KW Variant 3 Coilovers · KWKit 35220023: progressive springs, 16 rebound and 12 bump clicks, 20-40 mm lowerSuspension

Intrax 1K2 Coilovers · Intrax100 / 50 kg/cm springs as supplied, single-knob damping adjustmentSuspension

Digital Drivers 1.55 m GT WingOur own swan-neck GT wing: 1.55 m span, 0.30 m chord, Gurney flap; not a maker's productAero

Designs

the liveries of the car, picked in the game's garage

Designs

Historic Livery Schnitzer M3 GTR N24 2005

Setups for this car

One per track, free like the car: Qualifying for a quick lap out of the pits, Race for a stint. The app installs them and keeps them up to date.

Track	Version	Basis	Actions
Imola	v3	calculated	Sign in with Steam to download
Monza	v3	calculated	Sign in with Steam to download
Nürburgring GP	v6	calculated	Sign in with Steam to download
Nürburgring Nordschleife	v5	calculated	Sign in with Steam to download
Red Bull Ring	v3	calculated	Sign in with Steam to download
Spa-Francorchamps	v4	calculated	Sign in with Steam to download

All setups on the setups page

+Price breakdown · GT3 27 items · sum €525,790

What building the GT3 would cost in the real world.

A donor car in driver quality, 2026 list prices with their source, parts from the US with freight and import duty.
Labour at workshop rates; items without a list price are marked as an estimate.
Not a price you pay: here the car is free.

Item	Amount	Source
Donor car: BMW M3 CSL E46	€100,000	mobile.de CSL listing 114,930 EUR at 94,800 km suchen.mobile.de; autobild 81,245 EUR at 52,000 km; Hagerty high bid $147,150
BMW P58 engine, part number 05748334245KT	€86,000	bmwblog.com ($100,000 at Turner / ECS, exchange rate only; no second source confirms the price)
M4 GT3 Xtrac six-speed sequential transaxle with LSD and electro-hydraulic shift	€75,000	Estimateestimate: 60-90k EUR; Xtrac racing gearboxes GBP 33-52k before options gt40s.com
Race clutch, carbon multi-plate	€6,840	Estimateestimate: Sachs RCS 2/140 carbon clutch 6,836 EUR; Tilton 5.5" OT carbon 3-plate (about 1,020 Nm) $4,675-7,625 (research/2026-10-15-preischeck/sources.md)
Driveshafts, torque tube, transaxle mounts for the E46 shell	€10,000	Estimateestimate: custom CV shafts and torque tube for an E46 shell
P58 ancillaries: radiators, intercoolers, dry-sump tank, intake	€10,000	Estimateestimate
Race exhaust, twin tailpipes, fabricated	€4,000	Estimateestimate
GT3 brakes: front 390 mm 6-piston, rear 380 mm 4-piston, discs, pedal box, ducts	€16,000	Alcon GT 390 front kit for the G8x $9,075 (BimmerWorld) + AP Radi-CAL rear kit CP9451 for the E46 $4,849 (elite-performance) = about 11,970 EUR (exchange rate only) + about 4,000 EUR pedal box and ducts (estimate); AP CP9668 caliper 1,133-1,394 EUR each raceandrally.com
Nitron R3 3-way coilovers + race springs	€6,600	elite-performance.com (about 6,000 EUR in the EU) + 600 EUR springs
APR Performance GTC-300 67" E46 wing AS-106743	€1,800	vividracing.com (MSRP $1,575)
HARD Motorsport splitter + APR rod kit	€600	turnermotorsport.com ($269-399) + about $150 rods (estimate)
Carbon rear diffuser, BimmerWorld style	€1,500	Estimateestimate: Flossmann M3-R diffuser at $2,200 is the upper reference
M4 GT3 steering wheel, race version with quick release and wiring	€4,000	Estimateestimate: 3-5k EUR; the Fanatec Podium M4 GT3 wheel costs 1,400 EUR gtplanet.net
Bolt-on aluminium hood louvres	€450	Estimateestimate
Autopower race roll bar 60904	€1,000	bmptuning.com ($896)
7" column display with shift lights	€2,000	aimshop.com (AiM MXG GBP 1,250) + loom and mount (estimate)
Centre-lock wheels 18x9 / 18x10, set	€5,400	Estimateestimate: BBS E88 12x18 at 1,535 EUR each as reference, narrower rims about 1,350 EUR
Centre-lock hub conversion, nuts, wheel gun	€6,500	Estimateestimate: adaptor kits from $2,200 forgeline.com; E46 hubs are custom
Pirelli P Zero DHF slicks 275 / 305, set	€2,200	autobild.de (about 2,100 EUR per set)
100 l FIA fuel cell + pumps	€4,800	ogracing.com ($2,873) + 1,500 EUR pumps and collector (estimate)
Race electronics: ECU, power distribution, loom	€35,000	Estimateestimate: Bosch PBX 190 10,512 EUR net xtramotorsport.com, ECU 15-20k EUR, loom 5-8k EUR
Race seat + harness	€2,500	Estimateestimate: FIA seat 1,100-2,000 EUR + harness 500 EUR
Safety extras: plumbed extinguisher, kill switch	€1,000	Estimateestimate: not in the spec, but a real car needs them
Vinyl sun strip	€100	Estimateestimate
Labour: drivetrain swap, tunnel, mounts, cooling, wiring (about 750 h, range 650-900 h)	€127,500	Estimateestimate: 750 h x 170 EUR (net; German workshop rate over 200 EUR/h incl. VAT, GDV / auto motor und sport 7 Oct 2025, auto-motor-und-sport.de)
Paint repairs + livery wrap	€7,000	Estimateestimate
Calibration, dyno, shakedown	€8,000	Estimateestimate

Sum of items €525,790 · rounded as the price tagapprox. €526,000

+Changelog v58 10/31/2026

More grip on the road tyres, as on the Clubsport and the GT2 RS MR: Cup 2 R +2.6 %, Trofeo RS +4.7 % lateral / +5.7 % under braking, A052 +2.6 %, with less grip loss under load, a quicker response and a 70 C start temperature.
Road tyres now in 18 in to fit the GT3 wheels: 265/35 R18 front and 295/30 R18 rear (until now 235/35 R19 and 265/30 R19).
Tyre names with maker and size including the rim diameter, e.g. Pirelli P Zero DHF GT3 slick 275/305-18.
Slick 3 % more grip (lateral and under braking), so it stays quicker than the Trofeo RS at every load, as on the GT2 RS MR.

+The original

The car

The aero package pairs an APR Performance GTC-300 rear wing with a HARD Motorsport front splitter, a flat floor under the car and a carbon rear diffuser. The cockpit has a bolt-in roll bar, the M4 GT3 steering wheel and a race display with the M4 GT3 pages under a bar of ten shift lights. With the 100 l safety cell and the battery in the boot the car weighs 1,265 kg in the game with driver, 50.3 % on the front axle.

Set up the way GT3 teams run the Nordschleife. Every chassis, aero, brake and tyre part can be changed in the garage.

The original

BMW raced the E46 M3 as the M3 GTR from 2001, first in the American Le Mans Series with Schnitzer, then at the Nürburgring 24 Hours, where it finished first and second in 2004 and won again in 2005. Those cars used a 4.0-litre V8.

This build takes today's route instead: the P58 of the current M4 GT3, BMW's GT3 engine derived from the S58 production straight six (crankcase, cylinder head and crankshaft carried over), rated by BMW at up to 590 hp and 700 Nm.

+Chassis, tyres, brakes, gears and aero

Chassis

Weight	1,265 kg
Weight on the front	50.3 %
Centre of gravity height	465 mm
Wheelbase	2,729 mm
Track front / rear	1,518 / 1,525 mm
Length × width	4,587 × 1,780 mm

Tyres and wheels

Front	275/645 R18
Rear	305/645 R18
Compound	Pirelli P Zero DHF GT3 slick 275/305-18
Rims	18x9 / 18x10 Centre-Lock Race Wheels

Brakes and tank

System	GT3 race brake system (BMW M4 GT3)
Front	390 mm, 6-piston
Rear	380 mm, 4-piston
Brake bias range	60 – 80 %
Fuel cell	100 l

Base setup

Brake bias front	71 %
ABS	7
TC	4
Ride height front / rear	80 / 95 mm
Wing	3°
Fuel	60 l

Engine

Power	541 PS
Torque	695 Nm
Limiter	7,000 rpm
Final drive	2.68
Top speed (estimate)	295 km/h

Speed per gear at the limiter (theoretical)

Gear 1110 km/h

Gear 2142 km/h

Gear 3182 km/h

Gear 4220 km/h

Gear 5263 km/h

Gear 6297 km/h

Aero balance over speed

Aero balance over speed
km/h	% front
60	38.6
80	38.6
100	38.6
120	38.6
140	38.6
160	38.6
180	38.6
200	38.6
220	38.6
240	38.6
260	38.6
280	38.6

+Suspension adjusters · Nitron R3 3-Way Coilovers

Adjuster	Min	Max	Step	Unit
Spring rate front (at the wheel)	60	180	5	N/mm
Spring rate rear (at the wheel)	30	160	5	N/mm
Ride height front	50	120	1	mm
Ride height rear	50	120	1	mm
Low-speed bump front	9,180	27,930	750	N s/m
Low-speed rebound front	11,320	33,630	970	N s/m
High-speed bump front	2,150	6,500	290	N s/m
Low-speed bump rear	7,560	23,060	620	N s/m
Low-speed rebound rear	9,060	27,920	820	N s/m
High-speed bump rear	1,980	5,880	260	N s/m

+Suspension adjusters · Öhlins Road & Track Coilovers

Adjuster	Min	Max	Step	Unit
Ride height front	50	120	1	mm
Ride height rear	50	120	1	mm
Low-speed rebound front	7,880	23,720	660	N s/m
Low-speed rebound rear	6,700	19,900	550	N s/m

+Suspension adjusters · KW Clubsport 2-Way Coilovers

Adjuster	Min	Max	Step	Unit
Spring rate front (at the wheel)	61	176	5	N/mm
Spring rate rear (at the wheel)	30	160	5	N/mm
Ride height front	50	120	1	mm
Ride height rear	50	120	1	mm
Low-speed bump front	7,880	25,150	1,570	N s/m
Low-speed rebound front	9,660	30,360	1,380	N s/m
Low-speed bump rear	6,700	19,020	1,120	N s/m
Low-speed rebound rear	6,980	21,830	990	N s/m

+Suspension adjusters · KW Variant 3 Coilovers

Adjuster	Min	Max	Step	Unit
Ride height front	50	120	1	mm
Ride height rear	50	120	1	mm
Low-speed bump front	4,880	15,550	970	N s/m
Low-speed rebound front	6,020	18,920	860	N s/m
Low-speed bump rear	4,300	13,650	850	N s/m
Low-speed rebound rear	5,320	16,720	760	N s/m

+Suspension adjusters · Intrax 1K2 Coilovers

Adjuster	Min	Max	Step	Unit
Ride height front	50	120	1	mm
Ride height rear	50	120	1	mm
Low-speed rebound front	9,200	27,920	480	N s/m
Low-speed rebound rear	4,530	13,500	230	N s/m

Take them out on our Club Cars server: Practice