I've discovered the excitement of car boots....

Dear George, 
I have just discovered the thrill of jumping into car boots. They are full of the most extraordinary things. This one, which I leaped into as the human was changing her Wellington boots, included bottled water, a handbag that smelled slightly of other cats, a camera, two tins of cat food and one or two cat biscuits which I immediately ate. I was thinking of settling down for a nap, when she reached in and hauled me out of it.
I've heard of car boot sales. Do you think they would be of interest to us cats,
Yours sincerely
Caspar the Bengal.

Dear Caspar,
JDDI. Just Don't Do It. You are playing a risky game. Car boots are dangerous to cats. What if she hadn't pulled you out? She might have decided just to shut the boot without noticing you were there. Or done a bit of cat napping. Pedigree cats do get kidnapped every now and again.
Indeed, I advise all cats to keep away from moving cars or cars that are making that purring noise when their engines are on. Cars kill cats. They rush down the tarmac straight at us, as if they wanted to squash us. Often they succeed.
I realise that parked cars are convenient for sheltering from the rain, or even for sheltering at night if you are a stray cat. They also have interesting smells on their wheels. But a wise cat moves out fast as lightening if the car starts making a noise.
As for boots. Don't go there.
Yours with a stern warning
George.