I think the 'during the course of your business' could be a little key point...
If it occurred whilst not at work during your personal time it may be a a bit more debatable..
I think you also have to take into account:-
If a sole trader with the vehicle owned by the person,
- vs -
A Ltd Company where the vehicle is an asset of the company...
You have to watch out for those things the TaxMan says are a 'benefit in kind' that you are getting some additional monetary gain from activities that are not directly related to the business...?
Or is it just a normal vehicle maintenance cost that has to be paid in order for you to still be able to go about your daily business?
hmmm :C
does raise a few thoughts. :coffee