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05-03-2023, 07:26 PM | #1 | |
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New EV Caterham
Apparently Caterham are planning on making an EV sports car. https://www.autocar.co.uk/car-news/n...radical-design
Interesting tidbits: Quote:
Looks like VT Holdings didn't fund Caterham to just keep producing Sevens. Honestly I'm pretty excited for this - if they can pull off a lightweight EV sports car that emphasizes pure fun I'd be very tempted to buy one. |
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05-03-2023, 08:06 PM | #2 |
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I have to wonder how light it could really be. My understanding is that a pretty potent electric motor weighs less than and inline four and not having a trasmission, driveshaft or exhaust helps keep the weight down. However, the batteries are insanley heavy. The original Tesla roadster was 2877lbs(1305kg) while the Elise that it was based on weighed 1984lbs(900kg). I'm sure that battery technology has improved since 2008 but I don't know if they've gotten much lighter. I agree that a bare-bones EV that doesn't have an Ipad coming out of the dash would be pretty cool.
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05-03-2023, 08:16 PM | #3 | |
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05-03-2023, 08:37 PM | #4 | ||
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Quote:
I found this little excprt too, though I have been seeing energy density ratings of newer batteries to be a bit better(assembled weight energy density over 200wh/kg) but this is from 22'. Quote:
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05-03-2023, 08:44 PM | #5 | |
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Quote:
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05-03-2023, 08:45 PM | #6 |
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Yeah, cell vs pack density is certainly an easy place to claim improvements without them being applicable for the end product.
Still, even if the advances are not that extreme, we're still better today than in the original Roadster with regard to EV battery weight. Plus we're talking about an even smaller and lighter base vehicle - an Elise tub is 150 lbs; a Seven chassis is around 50. And yes, I'm aware Caterham are claiming no relation to the Seven, but they are planning on a spaceframe and it's reasonable to expect a Seven sized car. |
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05-03-2023, 08:56 PM | #7 |
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They could also make the pack structural to the frame which would help out a lot. Modern EV's do this.
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05-03-2023, 10:43 PM | #8 |
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And if/when someone has a bit of a bingle the repair costs go through the roof.
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05-04-2023, 01:28 AM | #9 |
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Interested because of Jannarelly and Caterham. This is like Colin Chapman building an EV sports car.
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05-25-2023, 01:40 PM | #10 |
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Another EV coming from Caterham, this time an EV Seven prototype not meant for production. The interesting bit is that it weighs in at 1540 lbs with a 51 kWh battery (with 40 kWh usable) and 240 HP/180 lbf with an LSD. I'd say this bodes well for their planned EV sports car.
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05-25-2023, 02:00 PM | #11 |
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05-27-2023, 08:50 PM | #12 |
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The latest from PistonHeads. Some new images showing the layout.
https://www.pistonheads.com/news/Cat...20Smart%20List |
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05-28-2023, 12:18 PM | #13 |
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I think that Caterham may go down the mid-engined EV route. I would not be surprised if it has the same footprint as the series 1 Elise or even the Elise 'reborn'. Tesla did it with the Lotus platform, perhaps it was too ahead of the game at the time.
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05-30-2023, 01:06 PM | #14 |
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Here ya go, right from the Cat's mouth so to speak.
https://caterhamcars.com/en/models/evseven |
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