Electric cars anomaly
Discussion
captain_cynic said:
Yep, your post does sound stupid. If you're going to call people stupid, you need to explain why... I'll start.
The Tesla fanboy butthurt is strong here.
The battery is 75 kW/h - the motor is 211kWThe Tesla fanboy butthurt is strong here.
I'll leave you to do the rest as you have such an advanced grasp of physics.
captain_cynic said:
The more an object weighs the more energy is required to start it moving (Newton's first law) and again to make it change direction (Newtons second law).
So a heavier Model 3 would fall fast or slower than a lighter Lotus if both were driven off a cliff?Don't miss quote the laws of physics if you don't understand them.
I was thinking more along the lines of the same tech in a leaf/I3 being put in a sportier chassis.
Think like a Smart car and then a Smart roadster, chalk and cheese looks and presumably driving experience, but same power train.
Ok I accept the range is less if the person thrashes it as would be more likely in a sporty version but if the batteries and motor were the same and it was lower drag it shouldn't be far off should it?
Think like a Smart car and then a Smart roadster, chalk and cheese looks and presumably driving experience, but same power train.
Ok I accept the range is less if the person thrashes it as would be more likely in a sporty version but if the batteries and motor were the same and it was lower drag it shouldn't be far off should it?
stargazer30 said:
Its a good idea if you can solve the weight issue. However IMO a fully electric sports car would just not sell, no engine noise. I mean half the fun is the noise sports cars make. Same reason most folks can't love Formula E.
There is some truth in this but it's interesting that the best selling sportscar over the last 30 years (MX-5) has more or less always sounded a bit asthmatic whichever engine it's come out the factory with. Now lots of people add sports exhausts etc further down the line but it doesn't seem to have effected new cars very much at all. So I think there'd be a market once EV's are more established generally, I just think it's low priority for manufactures at this stage. captain_cynic said:
Going electric doesn't get around that. At flat chat, A Tesla model 3 cannot complete the 14 mile Nurburgring. A Model 3 at full throttle is estimated to have an 8 mile range which is why I'm highly suspect of it's alleged 340 mile range.
Do tell us more of your amazing electric car 'facts'. 
Fancy betting money on the 8 mile range 'fact'?
He's trolling right?! No one can be this stupid?
stargazer30 said:
Its a good idea if you can solve the weight issue. However IMO a fully electric sports car would just not sell, no engine noise. I mean half the fun is the noise sports cars make. Same reason most folks can't love Formula E.
your wrong :-) An electric sports car would sell well .. the power delivery would sell it .. plus an electric motor , although quiet does give a 'go faster' sound which I love hearing - certainly more than a droning 4cyl with synthesised pops.
A BMW i3S is ~1200kg, 180hp, 200lb/ft .. this would make a perfect powertrain for an electric sports car.
jjwilde said:
captain_cynic said:
Going electric doesn't get around that. At flat chat, A Tesla model 3 cannot complete the 14 mile Nurburgring. A Model 3 at full throttle is estimated to have an 8 mile range which is why I'm highly suspect of it's alleged 340 mile range.
Do tell us more of your amazing electric car 'facts'. Fancy betting money on the 8 mile range 'fact'?
He's trolling right?! No one can be this stupid?
gangzoom said:
captain_cynic said:
The more an object weighs the more energy is required to start it moving (Newton's first law) and again to make it change direction (Newtons second law).
So a heavier Model 3 would fall fast or slower than a lighter Lotus if both were driven off a cliff?Don't miss quote the laws of physics if you don't understand them.
gangzoom said:
You clearly don’t understand them.
The speed the objects fall at isn’t relevant, the heavier object involves more energy as you’d find out if it landed on you.
And getting an object moving or changing direction does require energy proportional to its mass.
The Captain may be wrong in a lot of what he says but I’m not sure you’re the one to be giving him lessons in physics.
The speed the objects fall at isn’t relevant, the heavier object involves more energy as you’d find out if it landed on you.
And getting an object moving or changing direction does require energy proportional to its mass.
The Captain may be wrong in a lot of what he says but I’m not sure you’re the one to be giving him lessons in physics.
captain_cynic said:
So electric cars are at complete odds with the concept of a small performance car along the lines of an MX-5, Lotus, et al.
I'll just leave this here: https://en.wikipedia.org/wiki/Tesla_Roadster_(2008...Wooda80 said:
captain_cynic said:
So electric cars are at complete odds with the concept of a small performance car along the lines of an MX-5, Lotus, et al.
I'll just leave this here: https://en.wikipedia.org/wiki/Tesla_Roadster_(2008...
Blaster72 said:
An Elise + half a ton of extra weight. Lovely
I don't think anyone is naive enought to think that an electric car and an ICE car can ever have exactly the same advantages and disadvantages. But this proves that it's technically possible to produce something comparable. Road testers seemed to like it too http://www.evo.co.uk/lotus/elise/14160/lotus-elise... . This was 10 years ago too, so tech and costs will have improved considerably these days. How much has an Elise evolved in the same period?
The issue is not whether it is technically possible, but whether it's commercially viable in terms of sales volume.
It's technically possible to throw batteries and a motor into any car an make it an "EV".
The new Roadster will show us what can really be achieved though whenever it finally arrives.
I just think the original roadster took a great lightweight car and made it worse in practically every way.
The new Roadster will show us what can really be achieved though whenever it finally arrives.
I just think the original roadster took a great lightweight car and made it worse in practically every way.
At the time the Tesla roadster was faster than any Elise afik.
Batterys are getting lighter. The 3 is very close to the 3 series weight.
The P3d will be probably only 100kg heavier than the f80 m3
Battery density is improving 7 percent a year so in a few years they will be lighter than ice.
Batterys are getting lighter. The 3 is very close to the 3 series weight.
The P3d will be probably only 100kg heavier than the f80 m3
Battery density is improving 7 percent a year so in a few years they will be lighter than ice.
Blaster72 said:
It was slower accelerating, slower top speed, slower lap times, cost 3 times the price of the Elise and overheated its motors if used on track. Still people were willing to pay and some preferred the linear power delivery and environmental benefits.
In 2008 the roadster done 0-60 in 3.9 the Elise 4.72010 cup Elise managed 3.9 but the 2010 roadster did 3.7
I'm sure the Elise would be faster round a track but not in a straight line.
RobDickinson said:
In 2008 the roadster done 0-60 in 3.9 the Elise 4.7
2010 cup Elise managed 3.9 but the 2010 roadster did 3.7
I'm sure the Elise would be faster round a track but not in a straight line.
It tails off significantly above 60mph, Elise easily outguns the Roadster in a straight line. Getting off the line consistently and making good gear changes however would be tricky compared to the Roadster but that's a big part of driving a car like the Elise.2010 cup Elise managed 3.9 but the 2010 roadster did 3.7
I'm sure the Elise would be faster round a track but not in a straight line.
Going back to your battery density point though, I totally agree. I'm really keeping an eye on the 60kwh Leaf progress as this could be my first EV next year if the price is right.
Mr E said:
In a straight line, yes. Anything involving corners, my money is on the ratty old k-series. 
Yeah yeah slaughtered... https://www.roadandtrack.com/new-cars/car-comparis...
Blaster72 said:
It's technically possible to throw batteries and a motor into any car an make it an "EV".
The new Roadster will show us what can really be achieved though whenever it finally arrives.
I just think the original roadster took a great lightweight car and made it worse in practically every way.
That roadster changed the motoring world forever (plus VW's cheating of-course). The new Roadster will show us what can really be achieved though whenever it finally arrives.
I just think the original roadster took a great lightweight car and made it worse in practically every way.
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