Buy a Lancia Stratos. It had a 2.4 liter V6 Ferrari engine. Bertone coachbuilt the bodies.
It won the World Rally Championship 3 times.
They only made 500 for public sale
The Lancia 037 won the World Rally Championship, beating the Audi Quattro, and was the last 2 wheel drive to win the championship
The Lancia Fima 8.32 had the Ferrari V8 from the Ferrari Mondail and 308 . It was a 3.0 liter though, and he body was by PininFarina
Or if someone should stumble over a lost ASA 1000 Gt. Not going to happen, they were very very rare and were only built from 1963 to 1966. They cost 40% more than the nearest competitive car, the Alfa Giulia Sprint