Ripmax (A large UK Model Supplies distributor) were offering retailers MDS Engines as their house brand (RMX) up until recently. They had been updated and re-designed from those sold in the 'States. The RMX engines seem to have disappeared as well.
http://www.google.com.au/imgres?imgu...w=1276&bih=599
Ripmax only seem to stock MDS spare parts now
http://www2.ripmax.net/3index.asp?Pa...r=3&Search=MDS