7. Alfa Romeo 8C 2900
Back in the ’30s, Alfa Romeo produced mostly racing cars with just a few roadgoing models. Wanting to capitalize on its racing success, Alfa decided to introduce its competition eight-cylinder engine in a perfect Gran Turismo body. They intended it for wealthy clients who wanted power and looks from this legendary brand. And that is how the 8C 2900 was born.
Debuting in 1937 and built by Carrozzeria Touring, the Alfa 8C 2900 only came in 10 examples. All cars featured a 2.9-liter eight-cylinder unit producing 220 HP. They had an independent rear suspension all around with handcrafted panels and a custom interior. Needless to say, today the 8C 2900 costs a fortune, which is something Bruce Wayne could afford.