So, that's another couple of hours spent smoothing down the little blobs of knifing putty.
I've found that there are a couple of areas, on the rear wings especially, where I've damaged/altered and repaired the body and I've left ripples and dints that I just don't have the skill (or patience) to get straight, so they'll have to stay.
There is a danger though, that the finished result is going to look like a 60 year old race car that's had a hard life on the track and been damaged and hastily repaired in the paddock occasionally in its past.
Hang on a minute...