EV Database efficiency figures look poor

[LenEV2016]

EV Database have published their figures and they aren't the best, especially if they want to take Tesla customers

IM 5 standard average range 255miles on 75 KW battery.

Tesla model 3 standard range 275 miles on 64 KW battery

IM 5 long range 355 miles on 100kw battery

Tesla 3 long-range rwd 340 miles on a 75 KW battery

It certainly looks like the extra size and weight has harmed efficiency. Obviously other cars out there just compared it with the Tesla as it's the most obvious competitor.

Nothing different to ice cars with bigger engines being less efficient so costing more per journey.

 

[rgledhill]

Battery sizes are in kWh, by the way, not kW.

For reference, when we test drive the 75kWh IM5, that showed that they had got around 2.9mi/kWh in the car up to that point, which is not very good to be honest, resulting in a real-world range of about 225 miles roughly. The 100kWh battery is likely to be similar efficiency, so a real-world range of about 280-320 miles, depending on speed, weather, right foot etc.

 

[Sloucher]

Battery sizes are in kWh, by the way, not kW.

For reference, when we test drive the 75kWh IM5, that showed that they had got around 2.9mi/kWh in the car up to that point, which is not very good to be honest, resulting in a real-world range of about 225 miles roughly. The 100kWh battery is likely to be similar efficiency, so a real-world range of about 280-320 miles, depending on speed, weather, right foot etc.

If it was a demonstrator, I'd be suspecting that a few customers have been a bit lead footed to try out the power . The demo car I test drove was showing 3.8mi/kWh at the time of my testing.
Speaking for myself, I've never been precious about max range. I very rarely drive more than a couple of hundred miles in one trip anyway.

 

[tsedge]

They are certainly not amongst the most efficient EVs and Tesla are indeed well ahead of everyone else on that measure.

However, I agree with @Sloucher that what matters is whether the range is enough and any of the models of either car would be plenty for me and for most people.

The stats say 99% of workers commute 50 miles or less these days. And if it isn't for work, you can afford to recharge en route.

 

[LenEV2016]

I agree with @Sloucher and @tsedge to a point but I still prefer a more efficient car. It's the same with ice cars big heavy car (bigger engines/fuel tank) costs more to run.

It's what you are happy with though, I think if I was regularly doing a lot of miles and relying on paying DC charging costs I'd definitely be looking at efficiency first.

If all you are doing is shorter journeys and charging at home then it's less of an issue

 

[Everest]

What's the average recharge rate for IM5 vs. Tesla 3 series though? - and that one is in kW For me, and I suspect many others, being able to charge faster is more important than range, once range is over 250 miles.

 

[tsedge]

From memory it is something like 290kW (IM5) vs. 200kW (M3) at the peak, but the shape of the curve also matters. The tests I've seen show that the IM is faster at going from 10-80%. (I'm talking about the 800V version here).

However, getting the higher speeds is rare at the moment as there are few high-power chargers and at most installations the available supply is split across chargers so it is entirely possible you will get only 80kW from a 300kW charger.

To be able to rely on this you'd need a better charge network and arguably that's what Tesla comes with (with all the Tesla-only chargers), which counter-balances the fact that the peak/overall charge speed is a bit lower.

 

[Everest]

However, getting the higher speeds is rare at the moment as there are few high-power chargers and at most installations the available supply is split across chargers so it is entirely possible you will get only 80kW from a 300kW charger.

That's good to know - I was hoping that 150kW was commonly available - must factor that into the recharging schedule, especially when a trip across France is planned

 

[tsedge]

French infrastructure is probably better - but I've seen many a European review video where people excitedly go and test a high charging rate car but can't find a charger that will give that rate at the moment.

My own experience is I very rarely get the max charging rate my MG4 can do (135kW) except on nearly-empty Tesla supercharger sites. I almost always get at least 80kW at most 150kW+ chargers though (in the UK).

 

[tsedge]

From memory it is something like 290kW (IM5) vs. 200kW (M3) at the peak, but the shape of the curve also matters. The tests I've seen show that the IM is faster at going from 10-80%. (I'm talking about the 800V version here).

Actually it is 396kW max (IM5) vs. 250kW (M3), I didn't remember the values correctly!

 

[Sloucher]

I think I must have been lucky a couple of weeks ago when I managed the full 80kW for my MG4 for a few minutes at least from the 80kW rated Instavolt charger in Bognor Regis. OK, so it dropped to around 55kW for the rest of the charge but not bad all the same.
Apologies for veering off topic!

 

[LenEV2016]

Yeah the What Car review they were disappointed with the results they got charging.
The most telling thing for me was that the Tesla was about £40 cheaper charging for the same journey.

Again only an issue if you are doing loads of journeys where you will regularly DC charge