RHINO Single Surfboard Softrack - holds 2-3 boards
RHINO delux single (50cm) softrack
(Comes in it's own nylon bag)

It will fit any 5 door car or van and will also fit a 3 door as long as long as the rear windows have a slight opening. I use one of these myself and can recommend it.
FULL SPEC:

Fully padded buckle on exterior strap
Strong bag with side mesh for fast drip dry.
Colour coded straps with Rhino logo.
Strong through door system (not on gutters or clips)
Anti scratch Covered D rings
Wide pads
Hi grade metal buckles with anti corrosion paint
Easy fit straps Pre looped via D ring
Durable foam core pads with tough cover.
Will hold Will hold 3 Shortboards or 2 Longboards.
Tough carry case.
Can hold Surfboards, Kayak, Canoe, Windsurfers and Snowboards
Easy to fit on any 4 door or hatch back car.
ONLY £24.99!