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Electric car for £9500?

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langwadt:

--- Quote from: tom66 on October 04, 2023, 03:38:26 pm ---Even my ID.3 which has a modest aero footprint gets around 170Wh/km even at highway speeds in summer.  In city traffic (stop start) I've seen 130-140Wh/km provided I'm careful with regen and don't gun it at the lights every time!

--- End quote ---

Citroën Ami claims 70km on a 5.5kWh battery ~= 80Wh/km but that's barely a car with only two seats and a top speed of 45km/h

Simon:

--- Quote from: woodchips on October 04, 2023, 09:16:04 am ---I am seriously impressed with just how objectionable the people are on this forum. Not one 'hey, how would the car be made' post at all, just flaming and snide comments.

--- End quote ---

You see  :palm: , some of us actually are engineers. Some of us have had to develop products and seen the costs of the products beyond the components.

Note that the OP gave no boundaries to what this car would be other than price and performance. So, lets think outside the box. In my odd trips to the scrap yard I see cars with early noughties registration plates on them, so 20 years old. Why are they scrapped I ask? Fag tray is full, or more usually they can't be bothered to replace the cam belt, stuffed engine. So here we have a complete car, just missing a working engine. Why not replace with an electric motor and some batteries?


--- Quote from: woodchips on October 04, 2023, 09:16:04 am ---Lots of space to hold the batteries, and if use lead acid then a reasonable price as well. Need a speed control, ever used an electric fork lift truck? My one worked fine with a not very expensive speed control, even has regenerative braking. A range of 100 miles at 5 miles/kWh means 20 kW, a 12V at 100Ah is 1.2kWh, so need 24V at 1000Ah. A 6V 150Ah battery is 22kg so total weight is  about 600kg, easily carried in a small car missing the engine and transmission. Lead acid batteries are a well known item, can be endlessly recycled, easily available in a huge range of size and capacity, and weight can't be a problem when electric cars seem to be over 2 tonnes.

What else is needed? Got rust free body shell, brakes, steering, door, windows, all safety approvals, so just a heater for winter.

--- End quote ---

it's a small matter called safety and complying with regulations


--- Quote from: woodchips on October 04, 2023, 09:16:04 am ---There are people who will replace your classic car engine with an electric drive, price I have seen is about £50k, not really affordable. There is so much traffic on the roads now that single carriageway speeds are about 45mph from my experience.

So, how about it, what would be possible using scrap car body shells?


--- End quote ---

Have you asked these people why they charge so much? partly it is the classic car effect, but those kits have to be developed and gain approvals. Then each car has to be re approved as it is now a new and unique car that requires examination by the relevant authorities to ensure it complies with regulations.

bd139:

--- Quote from: Simon on October 04, 2023, 05:25:03 pm ---In my odd trips to the scrap yard I see cars with early noughties registration plates on them, so 20 years old. Why are they scrapped I ask? Fag tray is full, or more usually they can't be bothered to replace the cam belt, stuffed engine. So here we have a complete car, just missing a working engine. Why not replace with an electric motor and some batteries?

--- End quote ---

I know why. I ran those cars for many years. They are mostly held together with paint and moss.

Not only that they are designed with a specific weight distribution for handling which is difficult to reproduce with batteries. I've seen some conversion kits offered where they distribute the battery between the engine compartment and the boot. But you lose the boot and the handling is much worse.

I think it's probably better the material is recycled and turned into new EVs.

But there is a bigger issue is that the average age of a car in the UK is 11.6 years because everyone is fucking poor and can't afford shiny new cars, even if they are only £10k. The most I ever paid for a car was £5.5k. Until there is a well understood second hand EV market running for a couple of decades, which there *definitely* isn't now, then we are cruising towards the edge of a cliff. The second hand EV market is completely different to the second hand ICE market as well as the economics are different. Two distinct differences are the capital risk of EV battery replacement and the manufacturer's software.

woodchips:
Coo, some response, bit naff though.

Do you have to re-approve a car if it is changed? Not in the UK, put a different engine in and off you go. This is all I am suggesting, a different engine, the safety, steering and brakes stay the same. If it is an approval problem then something for the government to change then isn't it? Restrict the speed to 60mph say. As for selling outside the UK then why, enough cars, RHD, for the UK, other countries can do what they want.

I have no idea who the OP is or has done, I just took the post as is and thought about it.


SeanB:
There are a few companies doing EV conversion kits, mostly for the original VW bus, the VW Beetle, and the venerable (and much missed) original VW Golf, of which there are probably around 4 million in my country alone, seeing as they were locally made for 38 years with minimal upgrades to the basic design, aside from those due to needing to replace whole swathes of the production line, as it fell apart from wear. There are some EU based converters, who do EU spec vehicles, and they seem to be doing well in a bespoke way. Depending on the company, it varies in range and power, and in battery type. Some are highway legal, as they can reach 80kph, while others will only reach 60kph.

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