I had a 123d and sometimes I wish I'd never sold it... had a DPF-removal and remap done on it and it made 275bhp and 380lbft, was a proper little flyer. Look back and think that if I stuck a Quaife in it, then it'd have that missing piece of the jigsaw it lacked.

Pace-wise, it was only a bit slower than Chops E46 M3 in a straight line run we had one evening.

x35d and x30d are performance diesels and aren't really economy-focused IMO... so if you do mega miles and want a solid true ~45mpg return, then you'd be best looking at the smaller engined option.


Cheers,
Grant