You'll somehow need the Chaparral if you are into B-Spec.
The Miura is just a piece of driving history if you are more on driving the cars than completing the game.
Some people struggle with the Historic Cup at Cote d'Azure unless they have this car.Which part of B-Spec do you need the Chapparal for?
hhhmm, i'd spend my coin elsewhere, not even remotely worth the 15 million AND you can win it, just borrow someones 2J Chap.
I got mine for free, and even fully tuned it's pretty slow.
I wouldn't spend 15 mill on it.