DH - first dibs on car use?

[Whippet]

OK, I know this is first world probs etc and I'll try to keep it short.
At the moment we have 3 cars and 4 of us at home (Me, DH, two young adult DSs)

Cars are:

• A 5 door SUV (e.g. Qashqai), 1.6L - "main car" in my name - only DH & I can drive
• An old, small 1L 'runaround' 2 dr hatchback - all can drive
• A classic sports car (expensive) - mostly kept in garage - Only DH can drive

To avoid drip-feeding, the sports car is a bit of a bone of contention, as I didn't agree with DH buying it. It's noisy and uncomfortable and I don't want to drive it / won't go anywhere in it (it gives me backache!).

DH is going to see his dad this weekend ( about 100 miles away). His dad has been unwell and they are unlikely to leave the house/go anywhere. FIL has his own car too, which DH is insured to drive. There's also the chance his trip will spill into next week, if his dad needs his help.

Anyway . . . this morning DH announces that he'll be taking the 'main' car this weekend as it's more comfortable on the motorway and better for FIL if they go out.

I said I thought he should take his sports car instead as that would leave 2 cars here for 3 of us, and also the bigger car in case the 3 of us want to go out together (there was discussion of a trip to a big retail park about 40 mins away).
DH has taken his sports car ("to give it a run") to his dad's before, so I don't see what the issue is? But he claims I'm being unreasonable and I have to "justify and tell him what I need the bigger car for" (WTF?)

AIBU?

[quote TheLastLotus]@rookiemere there are plenty of cheap to insure cars which fit 3 people...in fact I’ve never heard of a car that can’t fit at least 5 except for 2 seaters and a couple of obscure models.
I know this because I’ve been car shopping for the cheapest things I can get my hands on now ... and I’m small.
Unless OP plans to do an entire week’s shop or has a wheelchair. I’d assumed they were going to hang out at the retail park but not buy loads of stuff but I don’t know[/quote]
Lots of smaller cars are 4 seaters. Two of ours are. We can fit 4 large adults in them and some stuff in the boot, but it's not comfortable for long distances (leg room) and a 1 litre engine carrying about 50 stone of human isn't going to be the most responsive trying to uphill on a motorway keeping pace with the traffic. For nipping about town etc then absolutely brilliant. If you are in the market for a decent reliable run around @TheLastLotus and 4 seats are enough then i'd highly recommend a Citigo. Basically same car as VW Up or Seat Mii. Quite high geared so actually not bad on a motorway, just not great with 4 big people plus shopping etc.

Regardless of who takes the big car, I’d absolutely not take a car I didn’t want to drive so that other adults can have their choice of car out of the ones I’d purchased...
This is all very no consequences isn’t it? I wouldn’t buy a car my partner didn’t like or could drive then expect to choose to use the main car my partner does like and drive on weekends just because. I’d acknowledge my choice of car meant I had to preference partner using her choice of car, as we don’t have two cars we are sharing, and that doesn’t mean that I have two cars I get first choice on.

His stupid sports car, he gets to drive it and leaves you with the practical big car for use when you go out with two big teenagers at the weekend. He’s obviously being ridiculous want to take the ‘main’ nice car that YOU chose. He can travel to his dad in the sports car then use his dad’s car. Inconsiderate git!

So what happened in the end OP?