I've heard of the Bitter, Opel based, isn't it? I haven't seen one in ages right enough, they must be seriously bloody rare!
I still say go for the Volvo and stick a V8 in when the engine dies, but to be honest you'll be waiting a while, Volvo engines last for centuries before they break! ;D ;D The V8 thing has been done, it's said to be a reasonably easy job on the 7 series, and it's been done on the 2 series too, by these guys for a start, who've done the 740 too...
www.jagsthatrun.com/Pages/Volvo_200_V-8.html
www.jagsthatrun.com/Pages/Volvo_700_V-8.html
I still say go for the Volvo and stick a V8 in when the engine dies, but to be honest you'll be waiting a while, Volvo engines last for centuries before they break! ;D ;D The V8 thing has been done, it's said to be a reasonably easy job on the 7 series, and it's been done on the 2 series too, by these guys for a start, who've done the 740 too...
www.jagsthatrun.com/Pages/Volvo_200_V-8.html
www.jagsthatrun.com/Pages/Volvo_700_V-8.html