Well done Sebastien. You've clearly looked after the car. £6000 represents great value when you compare the cost of buying a new car now. All the motoring mags are trumpeting that the car 'holds it's value well and is still worth 50% of the purchase price at 3 years". £15k depreciation in three years for a modest family car and twice that for something interesting comparable to a V6 SE.
Well worth looking after the ones we've got.