Just to add to alga's contribution, i would like to note the DMACK's DMT-RC tyre which is a "brother" of the brand's rally tyres but with DOT and E marking certifications.
It comes in 4 compounds and the available sizes are here:
http://www.vitalequipment.co.uk/inde...oduct_id=29830
If budget allows it i will get a set when i finish my car.