I have to say, for the first time in a long time I'm actually pretty pleased with my fleet and there's nothing I much want to swap in if things stay as are.
However, if I won the lottery and there was plenty of money to splosh about - it would have to be a P1, wouldn't it?
If it were a more modest win I'd probably go with buying a nice house in the country with a barn and get some stuff that I've wanted for a while:
Integrale
Ferrari 355
Alfa Junior / Lancia Fulvia
Porsche 964 (just so I can appreciate how much better and therefore undervalued my 996 is
)
Caterham / Morgan 3 Wheeler
Lotus Exige
Mustang / Charger et al
Bikes - not sure I'd swap at the mo; I love them both and don't really need anything else.