First drive: Seat eMii electric prototype

There’s not much feeling to the steering and the body rolls in cornering, but otherwise the eMii steers faithfully and the compact dimensions with a short wheelbase bring a natural agility to the driving experience.

Acceleration is brisk off the mark and the 0-60mph time of 12.4sec makes the eMii the fastest-accelerating model in the range, eclipsing the 75bhp Mii FR by 0.8sec.

There’s no official 0-30mph figure, but at such town speeds the eMii feels quick enough.

Peak torque output of the electric motor is a hefty 154lb ft — the sort of figure a 1.4 turbo petrol engine might push out — but the power delivery characteristic is quite different. The accelerative shove builds evenly and quietly. Powertrain refinement is, of course, outstanding for a small car.

A little whine from the motor and gearbox chirps in occasionally and the regenerative braking system adds its own soundtrack.

The downside is that other noises, particularly from the tyres and suspension, are no longer masked by the combustion engine — a familiar characteristic of combustion-engined cars converted to electric power.

On our very short test, we did see the benefit of regenerative braking, adding 6km to the battery range on a longish downhill run. The braking effort is selectable and our guess is that an owner would become quite adept at maximising the recuperation and boosting range.

So what of the future for Seat’s potentially first EV? No doubt it could perform the role of city-centre zero-emissions runabout with aplomb.

But Seat has to first decide to make it available. The current plan has the eMii pencilled in for launch in 2019-2020, when it will arrive alongside Seat’s version of the VW iD, an electric hatchback designed from the outset as an EV.

There’s a very good chance that, by then, rivals will also have the latest EV models available, and this will only accentuate the six-year-old eMii as an old-technology car and put more pressure on pricing to compensate.