I've never worked out the Alfa running cost, though it did manage 30.5 mpg on an 80 mph motorway run last night (130 miles)
bought @ 70,074 miles, now 95,100
in the four years i've had it, its had
2x upper arms
1 thermostat
12x tyres
1 complete set of brakes all round (due more front discs and pads soon)
1 clutch (DMF was still fine)
1 battery
All in all, just consumables and a couple of services. - not really a big list for a 10 year old car, especially one as complicated as a 166
it still gets regular visits to 7 - 7500 rpm, and still goes like shirt off a shovel if you give it a good thrashing. Its off having its cam belt changed at the moment, after that we should be good for a few more years of fun. Still a great car to drive, its so responsive compared to a 'normal' car, with brakes that given a good hard stop are still little short of startling. (315mm vented discs and Brembo 4 pot callipers
Build quality is amazing, the shut of the doors for example is so solid, and there isn't a peep from the interior in terms of squeaks or rattles.
Suffice to say, its been rather more impressive than the POS mustnag, aka the worst car in the world EVER.
