Sorry for the multiple models of car, but I have acquired a few cars over the years and I just can't seem to bring myself to let go of any of them!

I really need to let go of at least one of them (if only to get some driveway space back), but I know I will get a paltry amount for each of them, so I'd like readers' advice on which one(s) to sell and not kick myself afterwards.

Here's my profile: mainly myself in the car (40 miles daily) + occasionally my wife, 3 young teenagers and occasionally 2 dogs as well.
Wife drives a 2004 Golf 1.6 SE (a bit of a squeeze, but refuses to use CRV/Volvo as feels they are less comfortable for her bad back than the Golf)

Here are the motors:

(1)Honda CRV (2002) 85K miles (so due a timing belt change at next service), full year's MOT left, driving well though occasionally front offside brake mildly binding and due brakepad change soon. Does 30/gallon. Used value approx £2K

(2)Volvo V40 (2004) 97K miles (but new engine at 62000 miles),MOT'd until July 2013, driving well. Does 34/gallon. Nice looking car, nice comfortable heated seats but not as roomy as the CRV. Used value approx £1200.

(3)BMW 535i auto (1998) 100K miles, goes like a dream but SORN off-road at present, so a bit of a pain to keep charged-up. Lovely to drive, but doesn't go in snow, and doors stick closed in cold weather and then won't close properly (is there a simple fix for this?). Does 28/gallon. Used value approx £1000.

I'd be really interested to hear what others think - if only so I can tell my wife I've asked others for their opinions. With all the permutations and combinations I keep going through, she tells me I'm now officially a 'car-bore'(!)