Not an F430 owner, but know several ppl here in D.C. who do have one version or another.

Caution points:

- Make sure the car has its servicing at specified intervals like religion! According to the dealer here in Virgina, believe it or not a lot of people who used to own these cars typically are (1) too busy and don't realize the amount of care it takes to own this machine, (2) Have so much money they treat them like Honda Accords. Expendable items.

- Make sure the engine hasn't been overevved if a manual.

- Make sure the car has not performed too many Launch Control starts (some American dealers are re-enabling this feature for customers since it's not "offically" available in the US)

- Clutch - clutch - clutch. The F430 chews em up if even slightly abused.

- Service will be every 5-7K depending on how driven, or at least once per year.

- Oil change is about $500-600 US dollars. I nearly [beep] a brick when my co-worker showed me his invoice.

- General service (brakes, filter, tune-up, etc, etc.) will run you $4000-$5000 dollars.

- New tires and mounting all around by specialized nick free equipment, $2000.