What's the best modern classic for under £10k?

I have £10,000 to spend on a modern classic convertible. Could you advise on the most 'collectable' car on the market? I was considering either a Mk1 Audi TT or Mercedes-Benz SL.

Will it be a classic?

We bought a Mini Roadster JCW 6 months ago. Great car and much fun to drive. Heard that it has been withdrawn from the range now. Will it become a classic and hold its value well?

Jaguar S-Type buying advice

My next door neighbour has a Jaguar S-Type which hasn't moved in 18 months. Would you consider this to be a future classic? It has done 53000 mls with main dealer stamped up book. Future mileage would...