Audi RS4 Sportec 550 " stage 5"
It´s redesigned/tuned by the well known Swiss tuning company SPORTEC ,and there are only built 5 pcs worldwide, from this unique RS4.
Stage 5 Engine upgrade :
pistons, crankshaft, cylinder head, turbochargers, fuel pump, exhaust system, oil coolers and intercoolers .
Porsche GT3 brake system , Sportec 20" rims