V's definitely deliver better torque. The V4 is certainly a mythical breed, but its LOVED in the moto world. Honda has been missing a large opportunity IMO, they've long kept the V4 consigned to touring bikes when every rocket jockey and their uncle is begging them to stuff it into the CBR and go Ducati hunting... But i digress...You don't hear much about v4 engines... are there any big gains/losses comparing a v4 to and i4 in terms of application in cars? Is a v4 capable of making the same displacement and power as an i4?
Porsche just won Le Mans using a V4. they also have the benefit of being EXTRMELY compact which may be beneficial if Honda looks to couple it with a hybrid system or something...
https://en.wikipedia.org/wiki/V4_engineCompared to an inline-four, the advantages of the V4 engine include compactness, short length along the crankshaft, and, with a 90° V-angle, perfect primary balance giving a smooth and nearly vibration-free operation.
A disadvantage is that, as with a V-twin, it is more difficult to locate ancillaries, inlet systems, and exhaust systems. A V4 is usually more expensive to produce than an equivalent in-line four, having double the number of cylinder blocks, cylinder heads, and inlet and exhaust systems. Also, while a V-4 is essentially two V-twins side-by-side, a V4 can have a rocking couple that is not present in a V-twin. The compact 60° V4 is not perfectly smooth and needs a balance shaft.
In modern times, the V4's advantages have made it particularly suitable for motorcycles and outboard motors; but the advantages in a car have been found not to be worth the expense, especially as access for maintenance can become more difficult.
Honda could get around the cost of production thing if they intend to share the motor between cars and bikes... AND this would be a REAL throwback to old school Honda...like the original Honda S roadsters that used chain drives and motorcycle engines >>