General > General Technical Chat
Piles of Tesla owners stranded at charge stations abandons their EV's.
temperance:
The weight figures quoted earlier didn't take the ICE version into account. Meanwhile I found a complete list. A golf 7 with a 1.2 l TSI engine is about 1205 kg. A blue motion version is about 1377 kg and 2.0 TDI weighs 1.366 kg.
It also seems it wasn't honest to compare those numbers with a ID4 because the ID 4 is about 30 cm longer than a golf 7. The difference in weigh between a 2 L TDI and an ID3 is about 300 kg. (with a full fuel tank.)
David Hess:
--- Quote from: nctnico on January 28, 2024, 04:56:34 pm ---...
In addition to that, cars keep getting bigger by about 2cm per year. The latter is due to car manufacturers wanting to sell you a bigger 'the same' car without you thinking you are buying a more expensive model.
...
--- End quote ---
The US EPA has their hand in that also. Fuel economy standards are indexed by weight and size encouraging larger vehicles which are less fuel efficient. This has killed smaller pickups over the past decades; my 2002 pickup looks tiny compared to the smallest available pickups today.
tom66:
--- Quote from: AVGresponding on January 28, 2024, 10:29:24 am ---Ah yes, thank you for reminding me of the other major EV consideration; weight.
So, if someone insists on using normal tyres on their EV, they need to choose a higher load index. Which means stiffer sidewalls, and more road noise. Back to square one... (almost)
--- End quote ---
The load index for my vehicle's tyre is just 95V, which is very much in the normal range. A VW Golf Mk8 runs on 92V which represents at most 50kg less per wheel.
--- Quote from: David Hess on January 28, 2024, 02:50:56 pm ---
--- Quote from: Zero999 on January 28, 2024, 12:25:42 pm ---I wonder if modern cars with traction control promote more risky driving because the driver gets less of a hint they're pushing it to the limit before they lose control. Perhaps the car should warn the driver when they're pushing it, by gently vibrating the seat and making a noise?
--- End quote ---
Yes, various driver stability improvements promote riskier driving.
When anti-lock brakes first became available there was an opportunity to study their effects on drivers. Some cities required taxi fleets to have anti-lock brakes so there was plenty of good data. Initially the number of collisions went down, but as the drivers became accustomed to anti-lock brakes, the number of collisions increased until it reached the previous level, and on average the collisions became more serious.
--- End quote ---
I think there probably is some risk compensation, but it's worth noting in nearly every country the number of people killed in road accidents every year has been falling. Cars are safer, whether that is through airbags and crumple zones, or collision avoidance systems. I certainly wouldn't choose to drive without these systems.
In terms of 'safe until it isn't', I think that's particularly noticeable with ESP (electronic stability). I did notice in my previous Golf that it really was nailed to the road in corners, but there were times where you could just about feel the ESP system reaching its control authority and the car becoming a lot more dynamic. This was particularly noticeable in wet weather.
tom66:
--- Quote from: temperance on January 28, 2024, 10:01:03 pm ---The weight figures quoted earlier didn't take the ICE version into account. Meanwhile I found a complete list. A golf 7 with a 1.2 l TSI engine is about 1205 kg. A blue motion version is about 1377 kg and 2.0 TDI weighs 1.366 kg.
It also seems it wasn't honest to compare those numbers with a ID4 because the ID 4 is about 30 cm longer than a golf 7. The difference in weigh between a 2 L TDI and an ID3 is about 300 kg. (with a full fuel tank.)
--- End quote ---
ID.4 is a baby SUV, compare with something like a Tiguan/Audi Q3/etc.
This is a good website for size comparisons:
https://www.carsized.com/en/cars/compare/volkswagen-id4-2020-suv-vs-volkswagen-tiguan-2020-suv/
https://www.carsized.com/en/cars/compare/audi-q3-2018-suv-vs-volkswagen-id4-2020-suv/
In general, for the MEB-platform VW's (ID-anything) they tend to ride a bit higher because you sit on top of the battery pack, and you sit so much further forward because there is only a few things in the front engine compartment (no 'frunk' like a Tesla, but a larger boot, which is better IMO.) The interior space in the ID.3 is very surprising for its size, easily as good as some larger SUVs, but the rear headroom is roughly the same as a Golf (I'm 6'3" and wouldn't recommend someone much taller get one, unless you get the glass roof which gives a little extra space.)
Marco:
--- Quote from: temperance on January 28, 2024, 10:01:03 pm ---about 300 kg. (with a full fuel tank.)
--- End quote ---
Lets say 25% weight difference. Add that to the different weight distribution, higher tire pressure with a different suspension and different wear patterns.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version