4 ms·

does the weight impact anything consequential? I guess perhaps acceleration and handling? But I'm not sure the article went into that I just want a car that do

does the weight impact anything consequential? I guess perhaps acceleration and handling? But I'm not sure the article went into that I just want a car that does what is described, ideally without other tradeoffs. I would consider paying a premium for that, to an extent. I mean Tesla has been teasing Roadsters w/ 600 miles per charge at $250,000 for 5 years now. So someone just do the thing and make the option.

serf 5y ago
weight impacts everything; acceleration, handling, braking performance, brake wear , tire wear, road wear, generally increased NVH if the weight gain isn't part of the superstructure, drive train loads, consumable suspension (bushings/wear items) wear .. the list goes on, but you get the point. it's all a cost/benefit ratio between duration/range/cost/marketability/reliability ; you can take care of the technical issues behind weight gain, but is there still a market there once you do and the cost to produce skyrockets?
fragmede 5y ago
Is range consequential to you? The battery pack's already quite heavy (>1,200 lbs) and it takes both power and energy to move that much weight around. The bigger the pack, the more of both it takes to move it. The 100 kWh battery already gets 400 miles per charge. Doubling the battery pack with existing technology isn't going to get double the range. At some point there are diminishing returns where adding more batteries reduces the range due to the added weight. Also keep in mind that with an electric car, most users will use a home charger and start each day at full charge (even the slow charger can manage this if you're getting enough sleep). At the article's state 55 mph to get their range, it would take just over 7 hours of driving to go 400 miles. That's plenty for daily, non-fleet use.
- vmception 5y ago
  I don't want double, I want 20-25% more. That will cover all my edge cases.
cnasc 5y ago
> does the weight impact anything consequential? Kinetic energy. That could make collisions more dangerous (though I’m not sure by how much)

serf 5y ago

weight impacts everything; acceleration, handling, braking performance, brake wear , tire wear, road wear, generally increased NVH if the weight gain isn't part of the superstructure, drive train loads, consumable suspension (bushings/wear items) wear .. the list goes on, but you get the point. it's all a cost/benefit ratio between duration/range/cost/marketability/reliability ; you can take care of the technical issues behind weight gain, but is there still a market there once you do and the cost to produce skyrockets?

fragmede 5y ago

Is range consequential to you? The battery pack's already quite heavy (>1,200 lbs) and it takes both power and energy to move that much weight around. The bigger the pack, the more of both it takes to move it. The 100 kWh battery already gets 400 miles per charge. Doubling the battery pack with existing technology isn't going to get double the range. At some point there are diminishing returns where adding more batteries reduces the range due to the added weight. Also keep in mind that with an electric car, most users will use a home charger and start each day at full charge (even the slow charger can manage this if you're getting enough sleep). At the article's state 55 mph to get their range, it would take just over 7 hours of driving to go 400 miles. That's plenty for daily, non-fleet use.

vmception 5y ago
I don't want double, I want 20-25% more. That will cover all my edge cases.

cnasc 5y ago

> does the weight impact anything consequential? Kinetic energy. That could make collisions more dangerous (though I’m not sure by how much)