Private League Derivative for TTM at THR
===========================
Engine:
- Type: BMW S14/3
- Configuration: 2.5L inline-4 DOHC 16V with EFI
- Aspiration: natural with carbon airbox and ITBs with slide throttle manifold
- Interesting fact: 350 km rebuild interval in final 1992 DTM specification

Pros:
- low weight
- 6 gears
- strong brakes & 4-channel ABS
- adjustable front splitter & rear spoiler
- instant engine response
- wide useable rpm range
- very good traction from standstill

Cons:
- difficult to set up
- weak high-speed acceleration
- low top speed
- steep spoiler adds more drag than on the Mercedes
- small rear brakes

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Update v1.1 (TTM 2025):
- 2025-RC2: more power above 9000 rpm
- aero: rear spoiler drag reduced by 25%
- aero: body drag increased by 4.75% for higher level of realism
- engine: new 1992-spec S14/3 torque curve: 370 hp at 9500 rpm, redline over 10000 rpm
- brakes.ini fully reworked
- tyres: recalculated angular inertia of front & rear wheels
- tyres: updated rims to 18"
- tyres: HX tyre updated: SURFACE_ROLLING_K=0.5641 (Delta 0.03 between each compound)
- added CSP dash warning lights (turn signal, oil pressure, stall, oil temperature)
- added CSP oil temperature gauges for engine, transmission & axle
- added CSP oil pressure gauge
- added CSP fuel pressure gauge
- added CSP dashboard lighting rework
- added CSP dashboard shading fix
- added CSP Highbeam (inner headlight pair)
- removed CSP refraction from headlights
- suspension.ini: Damage Debug Logging disabled
- suspension.ini: front fast rebound increased from 5000 to 7000
- added 3 skins by Florian Masse

Bugfix v1.0.1:
- tyres.ini: DY_REF and DX_REF of HX compound fixed

==== physics ====
- colliders.ini: revised for more precise ground collision behaviour
- tyres.ini: added new Extra Hard (HX) tyre compound
- car.ini
--- Weight increased by 15 kg to meet DTM 1992 minimum weight
--- Fuel capacity 79L as per May 1990 FiA homologation adjustment
- brakes.ini
--- new 4-channel ABS as raced since DTM Nordschleife round in 1992
--- introduction of brake temperatures
- setup.ini
--- UI info for gearboxes renamed as per FIA homologation info
--- Front spring rate range expanded (min. 80 instead of 120 N/mm)
- suspensions.ini: Front DAMP_FAST_REBOUND softened from 12500 to 5000 (hardcoded)

==== visuals ====

ext_config.ini
- adjusted ext_config based on x4fab's
- added dedicated highbeam headlight bulb controls

==== skins ====
All prepacked skins are real-life skins by the following authors:

Florian Masse:
#1, #2 and #3 Macau 1992 (Schnitzer Mobil 1)

cyxapik:
https://www.overtake.gg/downloads/benson-hedges-racing-92-bmw-m3-gr-a-92.70667/

SimLiveryDesigns:
https://www.overtake.gg/downloads/bmw-m3-e30-dtm-1992-skins.28074/

RJDV7:
https://www.overtake.gg/downloads/bmw-m3-e30-gr-a-92-kaucuk-racing-team-32.19720/
https://www.overtake.gg/downloads/bmw-m3-e30-gr-a-92-mm-diebels-team-31.19932/

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Based on the 1986 model year E30 3-Series, the E30 M3 used the BMW S14 four cylinder engine.The production of the E30 road car was to homologate the M3 for Group A Touring Car racing.

The M3 had a commanding presence on the international touring car racing scene for five years. It became the most successful touring car of all times by winning the two champion's titles in the European Touring Car Championship and twice in the German Touring Car Championship. There were also numerous further victories and championship wins at international level.

The 1990-1992 cars of the Deutsche Tourenwagen Meisterschaft (DTM) were the most extreme versions and reached their maximum potential, with engines screaming over 9000RPM and outputs of over 350 bhp. The chassis was heavily modified and reinforced to support the extremely stiff suspensions that characterised the cars of the day. In the latest versions of the car ABS was also permitted in the DTM championship and the teams could setup their cars with gearboxes featuring 6 ratios.