5 Sleeper Cars Collectors Are Quietly Buying
You can’t get much better in some ways than sleeper cars if you want to get yourself a high-performance machine. These cars offer you sports car performance with the understated looks and practicality of a more regular model. It means you don’t have to compromise as much if you need a practical car for your family. Or, alternatively, it can give other unsuspecting drivers a real shock when you put your foot down and beat them off the line! As a result, some sleepers are starting to become really desirable. Some have even truly exploded in value, selling for prices that are well over what the average enthusiast could even hope to afford.
These five haven’t quite hit the point where they’re going to explode in value yet. But the smart enthusiasts are starting to get a hold of them now. That’s not just because of how great their performance is. It’s also because of how amazing of an investment these cars will be once the market catches up.
5
Ford Taurus SHO (First Generation)
Average Used Value: $7,500-$19,250
For those who know, the original Ford Taurus SHO has to be one of the greatest sleeper cars ever made. This otherwise totally unassuming sedan hides a Yamaha-built 220 horsepower 3-liter V6 engine. This was mated exclusively to a 5-speed manual transmission that was sourced from Mazda, and that sent power to the front wheels. Thanks to that powertrain, it could do the 0-60 mph sprint in 6.6 seconds — a genuinely impressive achievement for an American sedan that first hit the market in 1989.
You can get a good first-generation Ford Taurus SHO for as little as $7,500. But, prices for the best examples are starting to nudge into collector territory. One 1989 example with only 19,000 miles on the odometer sold for $19,250. With that in mind, you might want to pick up a cheap example now while you still can. You could have a fantastic investment on your hands.
4
Ford Contour SVT
Average Used Value: $8,900-$10,750
The Ford Contour SVT is a car that you’ve perhaps never heard of before. It’s one of Ford’s biggest oddities in the American market. That’s mainly because it wasn’t actually an American car. It was an Americanized equivalent of the Ford Mondeo ST200 that was built and sold in Europe. All the Contour SVTs were built in Kansas City between 1997-2000 (starting with the 1998 model year), and used an upgraded version of the 2.5-liter V6 from the regular Contour. This engine initially produced 195 hp and 165 lb-ft of torque, a noticeable increase from the 170 hp of the standard version of the engine. It was bumped up further to 200 hp and 169 lb-ft of torque in 1999. Across its entire run, it was exclusively available with a 5-speed manual transmission.
Thanks to its forgotten nature, the Ford Contour SVT is now a great performance bargain. Good examples can be had for as little as $8,900. One example that had been modified by adding a supercharger also sold for $10,750, showing that there’s actual demand for tuned versions of these cars as well as unmodified ones.
3
Audi S4 (B6)
Average Used Value: $12,926
The high-performance versions of the Audi A4 have always been solid choices for anyone who wants a fantastic sleeper. The B6-generation S4 has to be one of the best out there. Available as a sedan, a station wagon (known as the Avant), or a cabriolet, the B6 S4 is powered by Audi’s fantastic 4.2-liter V8. This is an engine that the first generation of the R8 also used, and that supercar DNA is very evident when you put your foot down! It produces 339 hp and 302 lb-ft of torque, with that power going to all four wheels (via Audi’s legendary Quattro all-wheel drive system) through a 6-speed manual or 6-speed automatic transmission.
The average used value of a B6 Audi S4 is now around $12,926. That average value is holding pretty steady now, too. Examples have sold for as much as $32,500 recently, but those are among the very best and/or tuned. So, for the moment, the B6 S4 is a smart buy that you should get hold of before it becomes a proper collector’s piece.
2
Audi RS6 (C5)
Average Used Value: $16,187
The A4 is far from the only Audi that’s had brilliant sleeper variants over the years. The A6 has had its fair share too, and the C5-generation RS6 is one of the best. Available in sedan or avant station wagon body styles, it’s powered by a twin-turbocharged version of the same 4.2-liter V8. This monster of an engine produces 444 hp and 413 lb-ft of torque, and all that power is available from as low as 1,950 rpm. Like in the B6 S4, this power goes to all four wheels through the Quattro all-wheel drive system. But, it was only available with a 5-speed automatic.
All of that means a 0-62 mph time of just 4.6 seconds, and a limited top speed of 155 mph. Owners and enthusiasts have reported that the top speed limiter is somewhat generous with how fast it will let you go in real life, too — speeds of up to 174 mph with the limiter still active have been claimed.
The average used value of the C5 Audi RS6 is now around $16,187. Values are still going down, but not by a huge amount, and the absolute best examples are starting to sell for almost collector money. One 2003 sedan with just 26,000 miles on the clock and the same owner for 20 years sold for $34,999 in 2025. With some more time, this generation of the Audi RS6 could become something truly collectible.
1
Pontiac G8
Average Used Value: $24,946
As it turns out, the Ford Contour SVT isn’t the only American-branded import on this list. The Pontiac G8 is one too, although its origins couldn’t be further apart from the European ones of the Contour. The Pontiac G8 is a badge-engineered version of the VE Holden Commodore sedan from Australia. G8s were actually assembled at the Holden plant in Adelaide, before being shipped off to America to be sold in American dealerships.
The G8 was available in three trim levels, all three of which got different powertrains. The base model (known as the G8 Sedan) got a 256 horsepower 3.6-liter V6, and it was only available with a 5-speed automatic transmission. The mid-level G8 GT got a 361 hp 6-liter V8 with Active Fuel Management, and a 6-speed automatic. The top-of-the-line G8 GXP got the same 6.2-liter V8 that you’d find in the base-model C6 Chevrolet Corvette of that era, producing 415 hp and 415 lb-ft of torque. This time, you did get a choice of transmission. You could either have the 6-speed automatic that was also in the G8 GT, or you could have a proper 6-speed manual.
How much you’ll end up paying for a Pontiac G8 does depend on what trim level you go for. But, its average used value of $24,946 across all trim levels is stupendously cheap for what it’s capable of. These cars will almost certainly become proper collector’s pieces soon as well. Only limited numbers of them were ever made, due to their short production run from 2008–2009. This was caused by GM’s decision to discontinue the Pontiac brand completely, and had nothing to do with the G8 itself. Combine proper enthusiast appeal with actual rarity, and we could see these Australian-built sleeper sedans selling for big money before too long.
Sources: Bring A Trailer, Classic.com, Ford, Pontiac, Audi
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