The 330e is a plug-in hybrid (PHEV), so it has a petrol engine and a smaller battery pack than a full EV (which runs exclusively on battery power). That means the BMW’s battery should be less expensive to replace if it ever needed to be.

At the moment, the world is waiting to find out how long EV batteries last, but it’s looking like between 10 and 20 years is going to be the magic number. A lithium-ion battery like this one will last longer if it’s never over-charged and is cycled regularly rather than left sitting for long periods.

The BMW XM is BMW's flagship SUV, and a standalone M model. It also carries a plug-in hybrid V8 powertrain.

The M3 is based on the four-door three series sedan/wagon, while the M4 is based on the two-door 4 series coupe/convertible. There is a four-door M4 Grand Coupe.