Which used Alfa Romeo Spider sports should I buy?
As far as engines go, you can choose between a four-cylinder 150bhp 2.0 and a 3.0 V6 that delivers 218bhp. The smaller engine is more common and will serve you best.
The 3.0 sounds great and is very quick, but has more power than its chassis can handle. The 2.0 is more of a match for the car, and since it is the same engine you'll find in the 156 and many other Alfas, getting spare parts should be no problem.