You can also use STS Tyres Pros (I’ve used the myself for years & service far exceeds Kwikfit even tho same parent Co) for your tyres if no nearby Kwikfit.
Make a list of everything you MUST have whether it’s climate control, adaptive cruise control, heated seats etc
Then make a wish list of nice to have
And see what ticks as many if your boxes as possible. If you need a particular item like auto & the cheapest possible car in the scheme that meets that requirement isn’t affordable you might get help with a grant.
Don’t call motability scheme to discuss a grant with them as they’ll put you off, call motability grants direct number 0800 500 3186 option 1 for new applications
If a garage won’t give you a decent length unaccompanied test drive go elsewhere.
Shop about across different dealers as there’s often deals to be had esp if your sale will tip the dealer over their target that month for example.
Ask for advice on here is a good start too good luck.