Thanks everyone,
I've tried the floor paint and it hasn't lasted so it's time for a change.
I was planning on mototiles but have read about lifting issues and problems caused by open garage doors and sunlight bowing the tiles. The garage when finished will have a set of bifolds and a reasonable amount of glass so this is another problem and then finally one of the forums suggested you needed a 40mm gap on all sides for the areas I'm looking at covering. So all in all they have lost so of the original appeal they had.
I'm over at the NEC on Sunday so I'll ask all the questions directly of Mototiles.
I'm waiting on some prices for resin and tiled floors and I'll make a decision then but I was interested in everyone else's experience.
Has anyone ever considered Astro turf

it'll make the garage blend into the garden then.