Which standard car to choose?

[NOS Waster]

I see three cars that are moderately expensive in my Used Car Lot

1. RX8 LM Race Car (1 mil)
2. R390 Road Car (1 mil)
3. DN-X (DUALNOTE Concept) (750K)

I currently have 2 mil. should i buy any of these?

 

[Sertsa]

I used the used RX-8 LM to win the GT World Championship. I haven't tried the others.