Originally Posted by
samoht
If you go Diesel it has to be German or French, & if you want an interesting diesel then you're basically down to BMW I think, 1- or 3-series. Although, I think Renault did a Megane Cup diesel of some kind at some point in the last 5 years, so that might be a leftfield choice for a good FF chassis.
If it's purely emissions based then there are a few 50+mpg petrols you could consider
Fiat 500 TwinAir - Richard Porter loves his
Ford Fiesta Ecoboost - should be quite fun, & you could always turn the boost up for a 200bhp Fiesta
Lexus hybrids - boring but non-diesel and might be relaxing to drive and nice to own, since you're keeping your S14 as a fun car anyway
BTW I agree 100% about not committing fraud.