I'm been considering whether to keep my S3 of late and being the geek that I am, I thought I'd work out what its cost me to own so far. This is relatively easy for me as all my spending goes into my MS Money file. I thought others may be interested in this, but obviously the figures will vary wildly depending on when you bought your car, how long you've had it, where you get it serviced and how many miles per year that you do. I bought my year 2000 S3 on 13th August 2003 for the staggering sum of £15,500 with 53k miles on the clock. Today it has 87k miles on it and I figure it to be worth around £7,500. That makes depreciation £8,000 or £145.45 per month or 24p per mile. Average yearly depreciation is therefore 14.6% I've added up all my maintenance, parts, tax and insurance costs since I've owned the car giving to a total of £6,002. Note I don't get my car serviced at Audi and not that much has gone wrong with the car since I had it (air-con last year being the one exception - £600!). So running costs I make as £109.13 per month or 18p per mile. Finally, petrol costs. I've spent £5,266 on petrol for this car. Fuel costs - £95.75 per month or 15p per mile. So in total: £19,268 over 55 months. £350.33 per month or 57p per mile! Quite depressing. I can only hope I might lower this further by keeping the car a couple more years (the depreciation should slow down), though I know I have tyres and some major servicing items coming up later this year - eek! Still, guess I wouldn't have bought an S3 in the first place if I wanted something cheap to run. Hopefully the costs are worth it for the quality and performance of the S3. What do you think?