David & Victoria Beckham are considered big time Chav's in the UK with the way they look.
Things Chav's do. As soon as they can muster up the money, they must buy a car, never mind that they don't have a drivers license of insurance they gotta have that car! Of course since most Chavs have little money the car will be ancient or/and falling apart. Then they start adding all that J. C. Whitney type accessory crap to these cars. The more deformed the original car is the better.
If you are walking down the street in London and see a group of Chavs sitting around (they always seem to travel in groups) it's best to not notice them. If you do, and they see you looking, you could be in for some trouble.
Chavs write strangely in discussion forums on the internet. Here is an example of Chav-speak:
oioi jus thort i wud say that ppl wud say i was a chav but i deant think i am.