GoCar Rentals

2715 Hyde (at North Point), (800) 914-6227, www.gocarsf.com

Next time the family visits, strap everyone into a GoCar, the world's first GPS-guided talking vehicle, and let technology take over. These tiny, three-wheeled convertibles cover city history and tell drivers where to turn and which way to look. Witness the locations that GoCar -- and not you -- can drag your guests to: Fisherman's Wharf, Union Street, the Presidio, the Golden Gate Bridge, Ocean Beach, Golden Gate Park, and the Haight. Designed by Nathan Withrington, who launched the company in spring 2004, the bright yellow cars seat two and come with helmets, a roll bar, and an ambitious racing stripe, but fear not: These 49cc two-strokes top out at 35 mph. Plus, GoCars go where no cars go, such as motorcycle parking slots, and customers are encouraged to veer wildly off route and explore the city at will -- after all, the car always knows where you are. A one-hour tour costs $39.99; additional hours cost $20 to $29.99, with free rides after five hours.