It was the early 90s when I started watching ScottChegg. The Benneton Fords were using V8s, there were a couple of V12, the Ferraris and I think possibly the Larousses with the Lamborghini engines. Did Minardi use them for a bit too? I think most others had V10s.
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Anyway, I think the less the rules impose the same solutions on people the more scope there is for innovation and for ‘men in sheds’ to take on the big teams. Look at probably the biggest change in F1, the switch from front to rear engines, the big budget teams of the day, Ferrari, Maserati, Alfa, Mercedes were all using big front engines but the rules were much less prescriptive and allowed an upstart British designer to fit a small engine at the back and beat them, they had just never thought of it. Same with turbos first time round, been allowed for years but no-one had really bothered with them until Renault and it became a game-changer.
I love the weird stuff, Brabham BT46B, Tyrell P36, will just not happen nowadays and then people moan because the cars all look the same