Astra estate might be a good bet, I've got an awfuly slow 1.6 petrol that insurance was cheap on. The back seats fold flat so the boot space is simmilar to the astra van easily big enough to fit me in and I'm 6'5". I use it to haul my Mx bike on a rack and fill the boot with all my kit full size tool box etc or chuck my bike in the back which easily slots in with the seats down. I've fitted three bikes, tool box, bike stand, track pump ,hold all etc in the back whilst camping at Mayhem didn't drive it like that though as bikes were just thrown in to keep the locked up at night. I bought it solely because I wanted something to be able to get to mtb, road and mx races and it fits the bill quite well a van would be better but too expensive on insurance like mentioned above. I usually drive about 1-3hrs to get to races and its quite comfortable on motorways it just takes a long time to get up to speed and touch wood it's been reliable so far despite costing in the region of 1k and having a hard life with me driving it! Try tiger.co.uk for quotes.
Iain