Some buyers, such as Greg Schmidt, 53, of Yorba Linda, Calif., are feeding nostalgia. In June, he bought a 1969 Chevrolet Camaro, something he'd longed for since he sold the '69 Camaro he bought new.

Others, such as Tom Souza, 61, of Los Angeles, are investing. He hopes to clear $35,000 when he puts a 1957 Chevrolet Corvette he has restored up for auction for $75,000 this month.

Whatever the motivation, the classic car business is greeting these buyers with open arms. They are seen as replacing the dwindling last generation of vintage car buyers, who favored the '30s and '40s Cadillacs, Buicks and Fords of their youth.

Industry observers say many buyers are driven by a post-Sept. 11, do-it-now attitude and a longing for something uniquely American from a simpler time. Others, looking at their latest investment reports, see a classic car as a purchase that can provide some fun while holding its value despite the whims of Wall Street.

The one worry: that some buyers might be out to make a buck rather than love a car, a situation that alarms purists and can send prices skyrocketing.

But that concern aside, industry insiders say muscle-car buyers are definitely giving the business a shot in the arm. For instance:

* Attendance and sales are up at classic-car swap meets, shows and auctions. Crowds at the four-day Barrett-Jackson auction in Scottsdale, Ariz., in January, considered the premier collector-car event, swelled by 25% over last year. Sales at the auction topped $26.9 million, more than a $500,000 higher than last year. A record 86% of vehicles offered for sale were sold.

* Car brokers say they are getting more requests for advice on what to buy and what to avoid. ''People are getting educated in this market,'' says Ed Suddarth, a broker for car-buying firm Concourse West. ''It's a lot easier to sell a car than it was two years ago.''

* After-purchase businesses are thriving. Jim Spoonhower, vice president of market research for the Specialty Equipment Market Association, says the car-restoration business has grown from $64 million in 1995 to $1 billion in 2001. Sales at Classic Industries, a parts supplier in Huntington Beach, Calif., jumped 30% this year. And Hagerty Classic Insurance, which specializes in collector cars, says business is up 20% from a year ago.

All that activity also means higher prices. Buyers can spend from $3,000 for a partially restored '67 Mustang to $5 million for such museum-quality cars as a rare 1966 Ferrari 330 P3.

But those in the industry say it isn't the old Ferraris but the finely restored muscle cars that are driving the current market.

At January's Barrett-Jackson auction:

* The owner of a rare (only four were built) 1969 Plymouth Roadrunner convertible with a 426 Hemi engine and a four-speed manual transmission refused a top bid of $135,000. He bets he can get more later.

* A 1970 Chevrolet Chevelle convertible with a 454-cubic-inch LS-6 engine and four-speed manual transmission sold for $172,800.

* A 1957 Chevrolet Bel Air, called Chezoom by renowned customizer Boyd Coddington, who built it, sold for $183,600.

For many, it's the right time

Many buyers of vintage muscle cars ''now are at a place in their lives where they have the ability to buy those toys and relive their youths,'' says Tim Sprague, CEO of Kruse International, a collector-car auction company that was recently bought by eBay. ''It's almost like buying a good lake house.''

Schmidt, a private contractor, spent almost a year looking at classified ads and searching the Internet for the right 1969 Camaro to buy. He ended up paying $10,000 for a bright yellow one being sold by the estate of the original owner.

''This was not a midlife crisis,'' he says. ''I love the car, and I only drive it on weekends.''

The only change he plans to make is to the interior, which originally was lime green but had been spray-painted black by the first owner.

He says he was offered $14,000 for the car the day after he bought it, but he wasn't looking at it as an investment.

Yet, many classic car buyers are, in fact, looking for an investment. ''People are disgusted with the stock market,'' says Keith Martin, publisher and editor of Sports Car Market magazine. ''To pull thirty or forty grand out of the stock market to buy a Mustang doesn't seem so stupid anymore,'' especially when the value could increase 30% in two or three years.

''People who normally have been putting their money into the stock market are now putting it in cars,'' says Ron Kowalke, associate editor of Old Cars Price Guide and Old Cars Weekly. ''Even if the investment tanks, they still have a car they are proud to own and drive.''

Tony Monopoli, executive director of the International Automotive Appraisers Association, says he's ''seeing so many new faces and investors that it's obvious that the stock market isn't doing it for them.''

Souza, a retired police officer, is an investor, although not one of those new faces. He's been restoring '57 Corvettes for profit since the early '70s.

''I don't do this for a living, but I am looking to double my money on the car,'' he says of the one he's putting up for sale -- a car he wouldn't dream of driving for fear it might get damaged. ''I've been able to do a lot of things, such as buy a nice house, with the money I've made from restoring cars.''

He has restored 30 Corvettes so far. He says he loves the '57 Corvette because it had a 283-cubic-inch engine with 283 horsepower and was a consistent winner on the racetrack.

Souza keeps one '57 Corvette that he races, but he will be looking to buy another restorable one with the money he makes from the auction.

Speculators not welcome

While longtime collectors and hobbyists welcome the burst in activity, they fear that speculators, driven solely by the pursuit of money, could drive prices up too far, much the way they did in 1989 and 1990.

Monopoli says he sees a key similarity between today's collector-car market and the one at that time: The stock market was tanking during both periods.

Back then, speculators might buy a car, then take it to an auction two months later and double their money, particularly with Ferraris and other exotic vehicles.

But most observers say those entering the market now want fun along with their investment -- not a trait of speculators.

''Whenever the stock market goes down, classic-car sales go up,'' says Mary Ann Liebert, former publisher of Automotive Investor. ''But these are not speculators. These are people who will buy these cars because they love them, and they want to own them.''

Car broker Suddarth estimates that speculators are less than half of the new buyers entering the market.

McKeel Hagerty, president of Hagerty Classic Insurance, says people are renewing their insurance more often, leading him to think that speculators haven't flooded the market yet. ''We retain about 93% of everybody we have. The people we have buy more cars than they sell,'' he says.

In the end, it's more nostalgia than greed driving the market, the experts say.

That's what led Rick Garmon, 43, of Stone Mountain, Ga., into a farm field last year to pull out a rare 1970 Plymouth Superbird, the race version of the Plymouth Roadrunner, that was rusted and had a busted engine.

Even so, Garmon, an auto repair shop owner, paid $20,000 for it and will spend $14,000 and almost a year getting it close to factory original.

''People say I'm crazy,'' Garmon says. ''But the first thing I'm going to do when it's finished is ride around to all those people who came around and made fun of me and show them what hard work can do.''Cover storyCover story

Front Page News Money Sports Life Tech Weather Shop