1986 Audi 4000 ex rally car turned German Touring Car for use in NASA and SCCA racing.

 

The chassis, suspension, roll cage and engine are all designed to create a very fast, semi light, powerful track weapon.

 

The original S4 V8 (2004) had a design flaw in the pistons and ended its life early. This is now being replaced with a 2007 RS4 powerplant.

 

The body is also currently receiveing a serious makeover. It is being converted to 2 door and is getting an all Carbon SQ style wide body.