The Group N rally cars are 2.0. The cars you are thinking of are the S1600 kit cars, a totally different beast and at least twice the cost.
Only a few kit cars need to be built and made available to privateer rally teams:
TYPE OF CAR
Group A VK -S1600 kit variant; front wheel drive.
HOMOLOGATION
Family: 25000 units in 12 months
Model: 2500 units in 12 months
Kit: 20 sets of:
Cylinder head cover
Intake & exhaust manifolds
Flywheel (2600 g min)
Pistons (310 g min)
Connecting rods (405 g min)
Crankshaft (8570g min)
Front strut mounts
Front bumper
Rear wing
Fenders
Wheel arch modifications
And 1 of:
Cylinder block if re-bored
Bonnet if modified
DIMENSIONS 3600<length<4000mm. Increase width by 140mm up to 1805mm maximum
WEIGHT 950 kg min no crew & fuel; 1100 kg with crew.
MATERIALS No titanium or magnesium unless used on production car. Carbon fibre: single layer on visible surfaces only
CHASSIS Main roll-hoop: steel Ø45 x 2.5mm thick; 500 N/mm2 min. Rest of roll-cage can be CFS3BK
BODYWORK Fenders can be plastic or GFRP but doors & bonnet remain steel
AERODYNAMICS Rear wing: 170 x 170 x 1100mm long max. GFRP only
ENGINE 1600cc 4 cylinders. Max compression 13:1 9000 RPM max
CLUTCH Ø184 minimum; no carbon; single plate
INLET Single series production throttle body Ø 60. 4 injectors max.
There is also a price limit for a fully assembled kit which is about $80,000 if I remember correctly. And I wouldnt be surprised if the manufacturer loses money at that price!<A style="FONT-SIZE: 10pt; COLOR: #ffffff; FONT-FAMILY: Arial" href= "
http://www.rallycodriver.co.uk/prepcompanies/technical/techspec.htmBR