I spoke to Minilite about Sparky's wheels as he came with a set of Minilites. They recommended (at the time) the 6 x 14, which had an offset of 30.
The P6 offset is 40, so they were a bit out of balance and made the front suspension rattle a bit. He did have the standard tyres fitted, i.e. 185 x 14 so that is an option.
The offset will throw the wheel out 10mm so you may have clearance issues on the rear if you're unlucky, especially if you fit wider tyres.
Richard