EV general discussion

cuke2u said:
I would think an ev would be quite the opposite, instant torque will cause the tyres to lose adhesion very easily, the very reason why using a higher gear is encouraged. Plus rear wheel drive is a disadvantage as well and fat tyres also are a negative.
Best car I ever drove in the snow was a Citroën Dyane 6, almost no torque, front wheel drive and narrow tyres.
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It's so predictable and smooth making it very easy to drive in the snow. Of course it will lose traction if you floor it but you drive as per the conditions as you should in any car. There are no gears to bother with and one pedal driving makes it even easier. The tyres aren't exactly thin at 215/50 R17 and while weight will help with traction it's not as heavy as many of the SUV's that are so popular these days. It was a really good choice as a first EV for us and I still enjoy driving it. This cold weather has destroyed my average efficiency though, it's gone from 4.24miles per kWh down to 3.16 miles per kWh!!
 
pastymuncher said:
It's so predictable and smooth making it very easy to drive in the snow. Of course it will lose traction if you floor it but you drive as per the conditions as you should in any car. There are no gears to bother with and one pedal driving makes it even easier. The tyres aren't exactly thin at 215/50 R17 and while weight will help with traction it's not as heavy as many of the SUV's that are so popular these days. It was a really good choice as a first EV for us and I still enjoy driving it. This cold weather has destroyed my average efficiency though, it's gone from 4.24miles per kWh down to 3.16 miles per kWh!!
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How wide are the tyres. I think you are overdoing the aspect of EV. It’s a heavy car on thin tyres.
 
VincentHanna said:
No idea, they said they avoided the highway.

I doubt they went at 15mph
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Either way it will have been unreasonably slow.

It’s not like these silly efficiency runs have not been done before e.g.

www.pistonheads.com

Mustang Mach E sets EV world records

Heard the one about John O'Groats to Land's End in an EV? Ford manages 840 miles with only one stop for charging
www.pistonheads.com www.pistonheads.com

A Tesla did the same 800 miles before with 1hr 15 of charging, again, unreasonably slowly.

620 miles from a 100kwh pack is basically the same efficiency the Mach-e above achieved back in 2021 in a 2020, the only difference I can see is the BMW might have done it at a slightly quicker pace. Either way it would have been unrealistically slow.
 
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b0rn2sk8 said:
Either way it will have been unreasonably slow.

It’s not like these silly efficiency runs have not been done before e.g.

www.pistonheads.com

Mustang Mach E sets EV world records

Heard the one about John O'Groats to Land's End in an EV? Ford manages 840 miles with only one stop for charging
www.pistonheads.com www.pistonheads.com

A Tesla did the same 800 miles before with 1hr 15 of charging, again, unreasonably slowly.

620 miles from a 100kwh pack is basically the same efficiency the Mach-e above achieved back in 2021 in a 2020, the only difference I can see is the BMW might have done it at a slightly quicker pace. Either way it would have been unrealistically slow.
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Well it's BMW marketing so we have to take it with a pinch of salt.

But 5 years ago I was driving a car with a 78kWh battery that did about 225 miles in summer to now you can get a 100kWh battery car that can genuinely do double that.

Give it another 5 years and most cars will be doing well over 600 miles off one charge, without fudged speeds.
 
I seriously doubt it and the iX3 can’t do 550 miles off a charge in the real world.

Its WLTP rating is 500 miles so it’s real range is more like 400, less in winter.

Don’t get me wrong, it’s good efficiency but it’s not groundbreaking efficiency, other cars are also achieving those numbers (e.g. latest Model Y). The massive battery is doing the heavy lifting here.

The biggest improvements for the latest generation is charging speed and price - both great improvements and not to be sniffed at.

I should add, I am interested in this as my next car because of its 100kwh pack but that’s because I tow, the vast majority of people do not need it and would be better off saving their cash and getting a smaller pack version if they offer one.
 
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Simon said:
How wide are the tyres. I think you are overdoing the aspect of EV. It’s a heavy car on thin tyres.
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Heavy (up to a point) car on thin tyres is an advantage in the snow depending a bit on conditions (ultimately it is about the contact point).

EVs are a bit of a mixed bag - the electronics / traction can usually react to surface conditions quicker / better than an ICE but conversely they are harder than an ICE for an experienced driver to manage the conditions manually - though depending on the EV there may be off-road or similar modes which help and/or you can try using eco mode to give more granular power delivery though that is also a mixed bag.

EDIT: Ultimately the tyres and/or the crossover between tyres and transmission will be the decider - you need at least one tyre having grip regardless of any other factor.
 
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b0rn2sk8 said:
I seriously doubt it and the iX3 can’t do 550 miles off a charge in the real world.

Its WLTP rating is 500 miles so it’s real range is more like 400, less in winter.

Don’t get me wrong, it’s good efficiency but it’s not groundbreaking efficiency, other cars are also achieving those numbers (e.g. latest Model Y). The massive battery is doing the heavy lifting here.

The biggest improvements for the latest generation is charging speed and price - both great improvements and not to be sniffed at.

I should add, I am interested in this as my next car because of its 100kwh pack but that’s because I tow, the vast majority of people do not need it and would be better off saving their cash and getting a smaller pack version if they offer one.
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225 *2 = 450 :D
 
EV much easier. There’s no mixed bag other than the mass inertia can be an issue. There’s no slip on the drivetrain to get torque to the wheels, the motor just turns, no clutches or torque converters. Its linearity is its friend. Instant torque comments are lol, cos you fill throttle it on snow do you?

My insight is a bit of a mountain goat too. Super light and motor assist.
 
Jonnycoupe said:
EV much easier. There’s no mixed bag other than the mass inertia can be an issue.
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For an inexperienced driver up to a point, though ultimately they'd probably hit the limits either way, for an experienced driver it is definitely a mixed bag when it comes to actively managing the conditions - though that also depends on the features of any specific car.

EDIT: A YT test here - I don't recall the outcome though I watched it a year ago:


There is a channel in Australia which does a lot of SUV/EV tests and what tends to happen in a lot of situations with EVs and hybrids they end up just spinning up the motors and then throwing up a transmission error in challenging snow like circumstances while with a bit of teasing the ICEs can often be made to get through, though again a bit of a mixed bag depending on model and features.
 
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Jonnycoupe said:
EV much easier. There’s no mixed bag other than the mass inertia can be an issue. There’s no slip on the drivetrain to get torque to the wheels, the motor just turns, no clutches or torque converters. Its linearity is its friend. Instant torque comments are lol, cos you fill throttle it on snow do you?

My insight is a bit of a mountain goat too. Super light and motor assist.
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"Instant torque" in this instance doesn't mean flooring it.

It means smooth acceleration, better control etc
 
Rroff said:
For an inexperienced driver up to a point, though ultimately they'd probably hit the limits either way, for an experienced driver it is definitely a mixed bag when it comes to actively managing the conditions - though that also depends on the features of any specific car.

EDIT: A YT test here - I don't recall the outcome though I watched it a year ago:


There is a channel in Australia which does a lot of SUV/EV tests and what tends to happen in a lot of situations with EVs and hybrids they end up just spinning up the motors and then throwing up a transmission error in challenging snow like circumstances while with a bit of teasing the ICEs can often be made to get through, though again a bit of a mixed bag depending on model and features.
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Not interested sorry. I’m talking from personal experience and knowledge. Don’t go all Jpaul on us.
 
Jonnycoupe said:
Not interested sorry. I’m talking from personal experience and knowledge. Don’t go all Jpaul on us.
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I gave you one example, from which you can find plenty of others, of where someone who is a recognised name in the industry is actually sitting down and testing side by side along with technical explanations.

Not that I needed to re-watch it to know but it also backs up my points.
 
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