I don’t know if that’s been posted in the past. If not, here you go, if yes, it’s worth repeating:
Some crazy French company once put a Range Rover V8 in the back of a first gen Twingo. The company who built it is called Lazareth, and you could buy one for 70.000€ to drive it on track, since this obviously wasn’t street legal.
The 3,5L V8 gave the Twingo 200hp for 850kg.
They also gave the car 2 bucket seats and racing harnesses, and a 5 speed manual gearbox.
I don’t know how many were produced and if anyone put the money on the table to buy one, but it must be terrifyingly fun to drive