Back in the 1950s and 1960s, it was common to see fins and portholes cruising along Long Island's parkways. Both features were distinguishing parts of Buicks - the fins in the back and the portholes, or vents, on the side. Fans of classic American cars may want to stop by the Vanderbilt Museum in Centerport Sunday for the annual All Buick Show, presented by the Long Island Buick Club. The cars will be parked on the grounds from noon to 4 p.m. The show is free after paying regular museum admission of $7 for adults, $6 for anyone older than 62. Call 631-854-5579.

And if you're looking for something even faster than an American muscle car, you can take a look at a 1909 Alco-6 Black Beast Racer. The vintage auto will be on display at the Roslyn Antiques Fair Sunday, 10 a.m.-4:30 p.m. Admission to the fair, which features more than 50 exhibitors setting up shop outdoors in downtown Roslyn, is $5. Call 516-625-4363.