The problem with BEV range is that its down to a lot of factors....
it performs better in stop start urban driving and not motorway (yes counter intuitive for ICE drivers)
Things like having the heating on really kills the batteries (an electric heater is all you have.... no heat from the engine!)
Lastly ambient temperature effects the battery - cold is very bad.
So a typical UK cold wet winter with you having the heating, lights, windscreen wipers on etc and trying to go down the motorway.... the range is really going to drop right off.
I'm sure MonkeyHanger wrote a lot about his BEV experiences on here - which pretty much align with other opinions.
Pretty certain that newer battery tech will fix this, but when is it coming? Its always "soon". Its supposed to be faster charging (assuming you can find the right charger...), longer range, lighter and less vulnerable to cold problems.
Which then gives me uncertainty about buying old tech that will be worthless once the new batteries come along.
I've already got the current quickest Born, the v2 e-boost 231ps, so I can let you know first hand about efficiencies.
Cold weather kills efficiency on EVs, because the battery array needs to be warmed to use it. For short journeys e.g. 2 mile school run, the battery warming takes as much energy as moving the car. At 0C, on that 2 mile school run, I'm lucky if I hit 2 miles per kWh. It's 4 miles per kWh in the Summer.
On a long motorway run, in Winter, eventually the battery warming effect wears off and you can get around 3.0 miles per kWh sat at 70 on a 100 mile+ run if you have the cabin heating on a minimum 16C. If you need cabin heating like a reptile does, figure more like 2.6 miles per kWh. In the height of Summer, you can do 3.9 miles per kWh sat on the motorway with the aircon on.
The "new" battery size of 79kWh seems the same as the old one, with less headrace. All batteries are bigger than their stated capacity. This one has an 82kWh actual capacity, with 77 or 79 kWh usable (this is to prevent overcharging or thermal variation overloading cells), mine is the 58kWh variant (usable), with 62kWh actual capacity.
Given its weight, the Born is quite agile (compared to pretty much every other BEV out there), but it's like chucking a bog standard Golf about, it's no chuckable hot hatch. Given that the 77kWh battery pack Born weighs in at a hefty 1970ish kg, this is no GTI.
If you scale up my figures for the bigger battery, you're talking a realistic 213 motorway miles at 70mph in Winter for this car with low heating, charged to 100% down to 10% before you really feel you need to stop for a charge.
Figure 277 Summer motorway miles on same terms. Knock 20% off these figures for driving at 80mph. Rapid charging costs about 79p per kWh motorway adjacent right now, so your costs per mile go up by a third in Winter. 20p per mile away from home in the Summer and 27p per mile in the Winter - dearer than fuelling a Golf R/S3.
For me, BEVs only make sense if you have a home charger and very rarely venture beyond its range. No-one is buying BEVs privately brand new right now, it's just fleet sales, as a result, the depreciation is horrendous - these cars on PCP will be handed back at a loss, worth about 80% of the HFV quoted for ours. When we bought ours 2 years ago new, GFV was about £21k at 3 years, Motorway value it at about that now. If you buy a BEV, don't buy new, they lose too much, grab a used bargain.
Most BEVs with amazing 0-62 times are one trick ponies and handle like sh!te outside a straight line. My nate just leased a Smart #1 Brabus with 3.8s 0-62, but it corner like a double decker bus, and looks like a Golf sized Vauxhall Adam.
