Thanks everyone!
Clean it, then cling film it? 
I ... I don't think thats lether, its more BMCs attempt at something like leather.
Anyway, I had a steering wheel in the garage, kept getting cover in weird nasty rubbish just from sitting. So I suggest getting a bit brutal with the cleaning, I used tuffie 5 wipes (which go through pretty much anything my car can throw at them) and ran them around a few times till all the gunk was off.
Or just buy a new wheel.
Its the sun melting the plastic not leather, Your best bet is too buy a new steering wheel.
Or send that one off to be covered in leather/vinyl. Leather covering for a wheel is usually around the £200 mark.
Unfortunately the designer's had a different steering wheel to the rest of the cars of that era...
If I we're you I'd go onto ebay and get myself a cheap Mounty Leather wheel with a boss. Probably around the £50 mark used.
haha, totally snazzy clingfilm!

Yeah I wasn't too sure if it was leather or not! yeah I'm thinking now that giving it a good deep clean might be the answer!
Considering getting it recovered might be a good idea, really want to avoid getting a new wheel if possible, as the designer has the flower in the centre, wouldn't want to lose that! Do you know what they have done differently on the designers?
Just checked eBay and the steering wheels are really good but I just want to keep her as original as possible! so even if I could get something to keep the centre it wouldn't look right on the car! (well to me anyway

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