Brit's Dangerous Curves

Britney had another wild night Thursday night, but this time, she was behind the wheel, gunning her Mercedes to speeds of at least 90 miles an hour on city streets!

Our photogs just came in with more details of Brit's "crazy" driving: Britney started her night on Robertson, shopping at Lisa Kline before stopping at the Starbucks up the street.

Then, when she was heading back to her house, she made a few illegal U-turns before heading back to Sunset, where she went 90mph before stopping at her second gas station of the night, to buy cigarettes (you can hear her peeling out in our video here).

She again made a pair of illegal U-turns in Malibu and Beverly Hills before heading home around 11 - but she didn't stay at home.

She came back out later that night to go to Virgin Megastore (which was closed), before heading home.

Slow down, Brit, you don't need to get anywhere that fast!