Following the on-board water solution thread, I bought one of the front runner tanks. Just to be clear I had absolutely no need for one, I just really fancied it to stick in storage for the day I do. So here it is. It will bit basically any vehicle; it's not a special Cruiser tank. It's 50l code WTAN 008 bought through Stan the Overlander. It fits behind the rear seats but can also fit behind the third row of seats. There's no vent in the cap but you can put one in. Equally you can pressurise it too so that the water is forced out. There's a handy take off point to connect up to. In terms of tie down, the tank has some strap grooves but no other fixing points to bolt though etc. Here's some pics. All in all as water tanks go it's pretty neat.