The s14 motor wasn't enough for this guy - to quote his web site:

"Formerly with M3 E30 engine. Now a 3.6 litre of M5 engine is in addition the already following things was purely changed: Rear axle differential of the M3 E30 Transmissions GET-RISE up 5-Gang sport Transmission tunnel of the E30 Front mask completely screwable Group of 2 widenings E21 steering element Rear axle on disc brake converted In front 300x22mm large brake disks with 2002turbo saddles Pitch diameter 5x120"

Click here for his web site.