Losing the plot!

It just doesn't matter either way. Just get the new car if you can afford it and sell the other one.
Private selling is a total faff though and you won't get your asking price without waiting ages unless you are very very lucky.

I think you’re definitely right to have your reservations then. I’d sell it first.

I personally wouldn’t choose an older EV due to the battery life. I say this as an EV owner, mines only 3 years old and it’s already dropped a lot since I got it.

It’ll sell though for the right price I’m sure!

Do either and don't worry about which.

"Lose the plot" over something actually important.

I never private sell nowadays. The concepts of "sold as seen" and "buyer beware" have just gone out of the window.

I would sell the existing car first. I've had all sorts of trouble selling recently. I priced my car £500 lower than the cheapest comparable model and still got tyre kickers and people making ridiculous offers without even seeing the car.

To be fair, it is a convertible, and I was trying to sell in October last year. I decided to wait for the good weather should such a thing ever happen here again.

I'd go part exchange for the easy option. You take the car in, they deal with all the faff and the next buyers.

There is demand for certain second hand cars at the right price so you might get some private interest if DH wants to private sell. You might also get a lot of tire kickers and people who want to negotiate down. It will require keeping the car somewhat tidy, clean and washed which can be a bit of a faff. You also might find you are having to stop in or wait around for buyers who are really late or even don't show with no communication.

My dad sold my first car privately (it was a 2008 Micra so ideal first car for a new driver) a few years ago and it was a PITA. People wanting to see it and not turning up. People coming to see it just for a day out. Lots of tire kickers. A couple of students. A couple of delivery drivers who wanted a run around. A few randoms who were more interested in the house and garden and the neighbours houses and gardens than the car. He thought he could shove it on the road with for sale in the window and bang it on auto trader and it would be gone in a fortnight. It took ages. It did finally go to a 19yr old. He part exchanges all his cars nowadays and has advised me to do the same.

These aren't normal times because used cars have appreciated recently and there's quite a bit of demand.

I'd put the old one up for sale - nothing to lose if you have a spare car as you said - and guage interest. If it's fairly strong then use that as a sign it will sell and make arrangements for the new car (is there a lead time on that?).

If there's little interest then lower price and be more cautious about timescale for buying new car.

Same. An older EV isn’t going to be worth a premium
here.

I don't think either of you is right or wrong about the particular question you've asked. But I would go for part ex rather than private sale for the reasons given already.

My boss’ husband tried this one. The car sat on their drive for about 3 years. He ended up selling it for spares or repair, only after she refused to go on another holiday with him until he sorted out selling it. He likes holidays, so……..

Maybe it's just due to all mine being shite but that has not been my experience at all - I did sell eventually but it was a struggle each time so I have given up.

People promising to turn up who didn't, ridiculous phone calls from shouty people trying to offer £20 for the car etc - it's all just too much for me but perhaps OP has a more desirable car and a thicker skin.

If private sale is taking ages...then it's set at the wrong price. Some people selling on auto trader price their cars at the top level of what auto trader have quoted.
You need to be realistic in pricing and drop it down a bit.
I've sold about 5 cars on auto trader (the last one being last year) all have been gone within a week.
I would buy then sell...so I'm not without a car

I think you are both being unreasonable by arguing. If you needed the money from the car sale to buy the new car then it would be understandable. But literally no point in arguing, it really doesn't matter 🤦🏻‍♀️

Basically you're worried he wont actually get around to selling it and it will be left to you? That's a valid concern. On the basis that he has form for it, i would sell first.

Selling first means that if you cant sell it reasonably quickly, the option of a part exchange is still on the table.

If it's an awkward model as you've said and its dirty and peeling trim it may not sell as fast as you think. And you've said you like 3 cars and they arent shifting so that would make me worried that mine would take ages to sell as well.

If you're determined to private sell, do it first. If you buy first and for whatever reason your current car breaks, you could be left in a tricky position. If you part exchange there is no hassle.

If you don’t need the money from the old car to buy the new one, then I suppose there is no need to sell first. But DH needs a good reason to hold back from selling first - otherwise what is the point? Say you keep it on your drive and then reverse into or something. You’ll still need to road tax and insure it - keep the battery turned over etc. seems pointless unless there is a specific need to keep it.

overall I’d say he is BU.