NEW CANAAN — Ordinarily, the colossal whine of a screaming engine turning onto Elm Street might take some pedestrians by surprise, but not Sunday morning.

Caffeine & Carburetors came to town again over the weekend, and the popular car show enjoyed a tremendous turnout of both automobiles and enthusiastic visitors.

“This car show is great,” said Tim Rinaldi, of New Milford, “probably one of the best car shows on the East Coast.”

Sunny 70-degree weather helped make it a revving success, with hundreds of antique and collectible cars on display along Elm and Pine streets.

“I didn’t realize how big it’s gotten,” said Lorenzo Diurno, of Wilton, who proudly displayed his aqua blue 1955 Bel Air on South Avenue.

He said the best part of old cars is the history. “It brings you back in time,” he said, noting they were much simpler to work on, as well.

“I am so impressed,” said Andrew Black, of Patterson, N.Y., “not only by the quality of the cars, but also the amount of respect that everyone has for the other cars.”

He said despite the vast difference in age, style and even value of the selection, everyone who shows up for the show shares their appreciation for all the cars there. “No one’s the star,” he said.

“And of course the weather is beautiful,” Black said, “and it’s spring and it’s just a wonderful experience to be here.”

“It’s amazing,” said Rocco Terenzio, of Stamford. “It’s one of the only places in the area you can see all this.”

“I can’t believe the turnout, either,” he said.

The variety ran the gamut, including 100 years of machines, from the classic classics, like 1957 Chevys and ’60s-era Mustangs, to high-end new cars from BMW, Porsche and Ferrari, classic trucks, vans and utility vehicles, to custom racing cars, to offbeat offerings, like a three-wheel Polaris Slingshot.

“They’ve got a good selection of cars,” said Richard Segalman, of Ridgefield, who arrived early and was one of the last to leave.

“What I like is the passion,” said his father, Joel, “not only from the owners, but from the people walking around.”

He said it was also good to see the community drawn out to an upbeat social event downtown. “It’s bringing people out with their dogs,” he said. “I’ve seen a lot of grandparents.”

“This is probably as good, if not better than the New York Car Show,” he said, noting people could go up close, talk to the drivers, smell the fumes and smell the leather upholstery.

“Back in my hometown where I’m from, any of these cars would be the star of the show,” said Timothy Cataldo, of Wilton, who displayed his 1979 Fiat Spider. “This show is real, and you don’t have the velvet ropes keeping you away.”

“And it’s not about the car,” he said. “It’s about the people and the stories.”

Caffeine & Carburetors will host its next show on May 22 at Waveny Park. For more information, visit caffeineandcarburetors.com.