You've not had a true subtropical experience until you've straddled the nine-horsepower Derbi GP1 scooter while zooming down A1A. You can feel the humid air shimmering past your skin and see the bugs splattering on the little windshield. You can stop on a dime and park just about anywhere you like. In fact, you can rule the road knowing that you're riding one of the most energy-efficient vehicles on asphalt. But where do you find such an experience? Start at this scooter emporium, just south of I-595 in Davie. You can put down several grand on a speed-demon Derbi, or you can go with the more conservative Qingqi QM50QT-6. Best yet, at Scooters Mania, you can give the two-wheeled life a test run. Scooter rentals are $75 to $95 from 10 a.m. to 6 p.m. or $105 to $125 for 24 hours. All rentals include helmets.