Benja
1
By popular demand, and now as a ranked list.
Sean let me know if you need help with your maths 
Audi A3 Oil Burner : Kerb Weight=1425kg Power=170bhp
Exige Honda SC : Kerb Weight=800kg’ish Power=300bhp’ish
Total Weight=2225kg
Total Power=470bhp
Power/Weight=211bhp/tonne
Since I’m the first I can enjoy a brief spell in the number one slot 
Rankings :
1 Benja @ 211 bhp/tonne
DSE
2
Anyone with a motorbike or two is going to win this.
Exige Honda SC : Kerb Weight=800kg’ish Power=320bhp’ish
Scania LS50 '76 : Kerb Weight=6000kg’ish Power=140bhp’ish
Total Weight=6800kg
Total Power=460bhp
Power/Weight=68bhp/tonne - bugger

[quote=FlyingDutchman]Exige Honda SC : Kerb Weight=800kg’ish Power=320bhp’ish
[/quote]
Disgusting! the drive shafts will never survive. 
Last ship I was on had 20,000 HP and 20,000 tonnes so I guess thats 1bhp/ton 
Torques fantastic but acceleration sucks. :sleep:
Light cars - power required
Lardy cars - torque matters