[Jay!]

I haven't seen any Volvo kits of anything later that the 850 wagon/sedan kits Tamiya had from when the car was in the BTCC. You may find a BTCC S40 die-cast in 1/43 scale, perhaps?

There are some kits by Dragon of recent, but not late model, BMW 3-series. Same thing, though; look for die-cast cars, and you may have some luck...

So, sorry to say, but the answer to both is "no." (At least for plastic kits.)