Why do motorcar engines stop at V12? why isn’t there a V 16 or V20?
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Buggati makes a W16 basically two VR8 engines on a common crank. VR 8 is basically two inline 4s with a very narrow angle between them. A v16 would probably be double the length. Lots of times it’s packaging. Look at a VW CC for example you can get a 2.0 inline 4 turbo or in the same space you could get a vr6 naturally aspirated.
Also development cost, servicing cost. Yes most above 8 cylinder engines for cars are in very expensive vehicles so service cost may be less of an issue but it’s a bad look for service times to be super long. Buggati has a 20000$ oil change because you basically have to disassemble the back half of the car.
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