1. 1929 Alfa Romeo 6C 1750 (detailed here)
2. Maserati Khamsin
3. Three-door First Gen Toyota Tercel SR5, ideally in blue
4. Chevy LUV, either with a 117 Coupe engine or a Chevy V8
5. Baja Bug (nailed it!)
Not sure what else will end up on this list. I guess I'll add more when I get more must-haves.
6. Volvo 544 with a latest-possible N/A engine swap, like a B20 or a redblock out of a 940.