Applies to cars — refrain from adding superfluous parts!

For example, unwise to add turbocharger to a car, because when you add a turbo charger, you have to add all these other components which creates more opportunities for breaking.

Even stock turbo charged car, like the Subaru WRX and the Subaru STI seem to be notorious for having turbo chargers which break or cause problems. Especially Audi cars with turbo chargers, almost always have problems. Perhaps then, all motor is best.