yeah they are in all kinds of cars, megans, rs focus, corsa etc.. the design is the sportster or sportster cs for the low sided ones (i think). the problem being the same.. anything that was made for a manufacturer factory fit , renault, ford etc. has a car model specific base.
only the recaro direct generic ones have the bolt to a different subframe pattern.
There is an italian outfit on ebay that sells the basics none heated/non airbag one in the all fake leather option around £700 each, which us about a cheap as they come. you then have to add the subframes. So two seats plus frames from Jon is coming in around £1600.