Hi,
I'm UK-based developer and love these sort of sites, with a bit of maths in there!
I'd propose giving you a php powered and mySQL backed system, so you can add locations as they come on stream, change prices, and vehicles types and so on.
Please note this quote does not include design work or hosting.
I've bid low, even though you'd be getting a quality solutions as I'm keen to develop some feedback through the site.
Kind regards,
Tim