The MG Metro 6R4 was certainly intresting, but it was one of the slowest Group B cars, probably because it was natrually aspirated. But in a way natrual aspiration made complete sense. The power which was around 450bhp, would be on tap all the time, rather than dealing with time consuming turbo lag. This was one of the things that made this car so intresting. They could have turbo charged it, but they decieced not to. All the cars were intresting in their own way, but I am about to make this even more complicated for you. You see, we all know very well about the Quattro Sport, the Lancia Rally 037 and the Renault 5 Turbo, but did you know about these Group B cars:
-BMW M1
-Opel Manta 400
-Porsche 911SC RS
-Talbot Samba
-Citroen Visa
-Lada 1600
-Lada VFTS
-Fiat 131 Abarth
-Skoda 130LR
-Fiat Ritmo
As you can probably guess yourself, these were'nt succsesful at all, and were'nt really that good, with the exception of the BMW M1, which had 400bhp. It was probably very hard to handle which was most likely why it didn't compete much. I think the others were in Group B, but were probably slow enough to be in Group A that was brought in in 1986. I don't really think they were made to be extreme, as Group B was a Group were you could make it fast or slow, it didn't really matter!