What's the best way stay warm on a motor scooter?on a motor scooter?

Don’t wear cotton against your skin, use synthetic materials (propelyne, polyester). Layers are wonderful. Get yourself a good pair of glove liners (made from wool or a synthetic), use chemical hand warmers, and get some toe warmers, too. Those things are amazing. Wear a hat and a scarf (or, even better, a neck gaitor).

OK, first, become the Ghost Rider….

Leather jacket (possibly insulated) with a sweater underneath.

Layers, like Les said, are good – just make sure that they are also strong enough to protect your actual hide in an accident.

Just ride it indoors.

AstroChuck, great answer. Works except for the stairs.

Wool under the leather. Propylene under the wool.
A balaclava around your neck and over your head – silk or synthetic.
Leather pants or even chaps, though those wouldlook funny on a scooter (not very Italian)....
and specialized motorcycle gloves – insulated and waterproof.

Good for you, to drive this cool little gas-saver as long as possible.

susanc, it is a cool little gas-saver, and very fun to ride, AND getting cold fast at 50mph in the Midwest fall.

sounds like buying proper riding gear will cost as much as the scooter itself!

Buy yourself a battery warmed vest, hat, gloves, pants. They make gear for cold weather riding all the way from light fall gear to the it just snowed and is -80 outside gear. Don’t forget that the Russians ride 2 wheel drive motorcycles all through their winters.