Rolled over to 100,000 miles today. Bought new 4 years and 10 months ago.
The car's been great so far. It's had no breakdowns to date. The only significant costs have been one set of tyres (not bad considering the mileage), one cam-belt change (all other servicing I've done myself), some body work for a parking ding and, of course, petrol.
Let's hope the next 100,000 miles are problem free :)