BSPEARSCAR112007_09.jpgBritney Spears BSPEARSCAR112007_01.jpgBritney may take a few chances behind the wheel when it's just her and Sam - but when her kids are along for the ride, she's playing it safe these days! Before heading over to Mirabelle to meet up with Michael Marchand last night, we spotted the Kentwood cutie being driven back and forth between the Four Seasons Hotel and her home in Malibu while she rode in the rear with the boys. (Not that sitting in the backseat cramped the Queen B's style, of course - check out that luxurious SUV!)