I trust the £750 does not include consumables like oil and brake pads & discs which are just as costly for a one year old as a twenty year old car.

The OP's car has effectively stopped depreciating. Any half decent replacement will probably depreciate by at least £1000 a year. People these days seem to accept two, three or even four thousand (e.g. a PCP 'deal' for £320pcm) a year depreciation. If the OP loves the car, he should get the clutch repaired by a trusted indy. From the mileage it looks as though it's doing fewer than 10k per annum - there should be plenty of life in it yet if it's not too corroded. Even then it might only cost a hundred or so if it fails an MoT - like our 20yr old Focus did when it was 17.

There's a parallel with our gas boiler, which was installed in 2000 (before we moved here) and received some new parts 15 years later - until the internal leak was diagnosed in the heat exchanger. A few years on, the fan became noisy and was replaced. It's still going strong, though the serviceman reckons the tube to the pressure gauge is probably blocked as it's not reading as it should. But I don't intend to replace the boiler just yet.

New boilers are probably like new cars - far more complicated than need be.