The 411: Its very name conjures up images of mansions, manicured lawns, and Mercedes-Benzes. Not only is it Westchester’s wealthiest town, it’s also its best educated. And the kids are smart, too (or at least good test takers)—Scarsdale students have the highest SAT scores (1916 out of 2400) in all of Westchester County (the national average is 1511). So it stands to reason that its downtown would be packed with pricey boutiques and upscale shops (the natives can afford them), and pretty darned good restaurants (ditto). The downtown consists of about two square blocks of retail shops in quaint split-timber and brick Tudor-style buildings, connected by a couple of arcades and flanked by additional shopping strips. Zachys, a nationally recognized wine emporium, has been a draw for oenophiles since 1944. Just across the tracks is Lulu’s Cake Boutique on Garth Road, a favorite of The Donald, Hill, and Martha. And the homes that surround the town? Let’s just say the natives can afford them.