Here's some ideas.
Some more sensible than others
All available now on ebay
M3 engine and box
BMW 5.6 V12
Lexus/Lancruiser V8
VW 2.3 V5
Stick this in the boot? Porsche 3.3 turbo
16V BMW and box
Northstar
3.0 diesel
another one to stick in the boot. 3.0 and gearbox
Diesel V8
Vauxhall 16V
Complete VR6 conversion
Audi 20V Turbo and box
Twin turbo Supra
Tuned 325 engine and box
XJR6
Cossie 24V
ooh er
Some more sensible than others
All available now on ebay
M3 engine and box
BMW 5.6 V12
Lexus/Lancruiser V8
VW 2.3 V5
Stick this in the boot? Porsche 3.3 turbo
16V BMW and box
Northstar
3.0 diesel
another one to stick in the boot. 3.0 and gearbox
Diesel V8
Vauxhall 16V
Complete VR6 conversion
Audi 20V Turbo and box
Twin turbo Supra
Tuned 325 engine and box
XJR6
Cossie 24V
ooh er