Think it was 45 here today. And it's not even august yet !
I would be surprised if you cac't pick up a great autobiography, as people here love buying top of the range cars, so you see loads of them here. Just make sure you pick up one that has been looked after.
Dark cars, ummm mine is epson green, not white. I just really liked the colour. But there are plenty of white ones here. Whatever colour you pick, it is still nearly 50 degrees in the summer, not sure how much help the colour will help.
There are plently of them here, but you will have to put the time in on the classifieds i gave you the links for. There is also a place called The Auto Souq, that sells second had cars. Hugh place, loads of cars. It is made up of lots of little dealers selling cars. They don't have a website but worth a visit when you get here. It's in Ras al Khor (in dubai).
One of the best know independents is AAA Service centre, www.aaadubai.com, they also sell the odd range rover as well. Try speaking to Gorden at the Al Rashidya branch. There are also land rover scrapyards in Sharjah, they will even do work on the cars as well. You should be fine for whatever you want.
Good to see you are looking for the car first !. Just what I would of done. Dubbizle is good for somewhere to live as well, one of the biggest estate agents is betterhomes, they will have a pretty good listing on their website.
Hope that helps.
Dubaidrift, what happended to the front of your car ?, thought your picture would somewhere in the desert !.