Pete
I have had a S1 and now a S3 - both needed some fettling and I guess this is to be expected . I agree with the other posts once done -they seem to be very reliable
My S1 had some corrosion around the lights too - just cosmetic
The hood was replaced on the S1 and seals on the S3 - I wouldnt expect the car to be water tight like a BMW - although that said since mine was sorted its ok in heavy rain
Wheels on the S1 are magnesium and have centre lock wheel nuts which require a large force to remove - not just remove a few nuts to clean them ! They are expensive too if they are damaged 600 quid each to replace new if you can find them - Repairs need to be done by a specialist who can do mag wheels
The engine in both is superb - long legged and great for distance touring -
Starter can fail on S1 - common issue see the threads on here
Loads of info on this thread so have a read
All of that said it the most exhilarating morgsn I have driven - refined ,comfortable , great road holding so dont hesitate if you have the chance you wont regret it
Also they are rare - see our register
http://aero8register.weebly.com/index.html Best Regards
Gajet