Who likes a Guzzi. ?

[Clifton]

In theory, I think I would prefer the Harley,Duke/KTM approach with the cylinders aligned with the longer axis of the bike but Guzzi's do seem to be a nice bike. But if I have the cylinders sticking out I want the BMW/Zundapp boxer design mainly for the smoothness in a touring bike.
Actually in reality, there have around 20 different manufactures that made a boxer twin over the years. Most of the axis mcc's you see in WWII pics are in fact Zundapp. Seems the wehrmacht much prefer the Zundapp boxer twin. Read that the other day somewhere.

One issue with the transverse crank v-twin is engine heat to the rider, especially from the rear cylinder, it's not efficient for shaft drive, and packaging length is a challenge on 90* versions. But it can be mounted low.

The longitudinal crank V-twin doesn't suffer from either, can still be mounted low, plus it's correctly oriented for the driveshaft.

I often hear how the boxer contributes to a low centre of gravity but that's not really the case. Yes the heads are lower but in order to allow enough lean angle the whole boxer engine has to be mounted higher and the heaviest part of the engine, crankshaft and bottom end, is higher than other twins.

Personally I really like the longitudinal crank, 90*, V-twin layout Guzzi uses for shaft drive motorcycles and parallel twin for chain/belt drive motorcycles.