By Josh Rosenberg
The Chevy Corvette is absolutely iconic and an extremely well-regarded sports car worldwide. But due to today's very high-priced used car market, many Vette shoppers are now looking for "older" models that have aged well as a way to save significant dollars.
And lower-mileage models do exist out there, making them a viable and definitely more economical option right now.
And by "older", I am generally referring to 10+ year-old vehicles, so those produced within the Corvette's sixth generation, which covered the 2005 - 2013 model years (C6).
Going back further raises the mileage, condition, and reliability risks a bit further, although probably still within acceptable ranges. Still, the sixth generation offers the better prospects, so we will be talking about those here.
Other reasons: 2005 also introduced the LS2 6.0-liter V8 engine, replacing the 5.7-liter LS1 engine from the C5, producing 400 horsepower and 400 lb-ft of torque, a significant improvement over the C5's 350 horsepower and 375 lb-ft. This increased power translated into a faster 0-60 mph time of around 4.2 seconds, making it one of the fastest cars in its price range. Top speed also increased to around 186 mph.
This version also came with an improved 6-speed manual transmission (Tremec T56) and an optional 6-speed automatic transmission. The manual had smoother shifts, and the automatic offered better performance with more responsive shifts.
In addition, the new, more aggressive rear-axle ratios improved acceleration and performance feel without sacrificing driveability. The C6 also featured a more rigid and slightly lighter chassis than the C5, improving handling and road feedback while enhancing the car’s overall performance.
But clearly, in considering these sixth generation Corvettes, prospective buyers must weigh the benefits of better affordability against the potential drawbacks, such as higher maintenance needs and outdated technologies.
So here, ...
- First, we'll look at what history has proven about the reliability of the sixth generation Corvette (again, 2005 - 2013).
- We'll then list the possible mechanical issues as reported by owners so they can be checked before buying one today.
- Then we'll do an overview of its features and characteristics so potential buyers can get to know the vehicle better.
- And then we'll follow that with "Things To Do When Considering An Older Corvette".
Older, 6th-Gen Chevy Corvette Reliability
This generation has generally garnered a strong reputation for both performance and reliability, especially in terms of its engine and driveline. The C6 came with a variety of engines, including the base 6.0L LS2, the 6.2L LS3, and high-performance variants like the 7.0L LS7 in the Z06 and the supercharged 6.2L LSA in the ZR1.
Engine Durability: The C6’s LS engines are known for being robust and reliable, especially the LS3 and LS2. With proper maintenance, these engines can last over 200,000 miles.
Transmission: The 6-speed automatic and manual transmissions are generally reliable but can experience issues, particularly in higher-mileage cars. The manual version tends to have fewer problems compared to the automatic.
Electrical Components: Some owners have reported issues with electrical systems, including problems with the heads-up display and power windows. However, these are not seen as widespread or particularly expensive to repair.
Suspension and Handling: The Corvette’s handling is one of its highlights, but worn suspension components, especially bushings and shocks, can need replacement after significant mileage.
Longevity: With proper care, including regular oil changes, fluid flushes, and keeping up with any minor repairs as they arise, a C6 Corvette can last well over 200,000 miles. Owners who have diligently maintained their vehicles often report their C6 still performing well after many years. The LS engines are particularly known for their ability to withstand high mileage with fewer major mechanical problems compared to other high-performance sports cars.
Many Still on the Road?: Yes, there are still many sixth generation Corvettes on the road today, and this is the ultimate indication of its reliability. It also has relatively low maintenance costs compared to other sports cars of its era.
If you're considering one, a thorough pre-purchase inspection, especially of the transmission and any potential leaks, can help ensure you're getting a reliable car.
Sixth Generation (2005 - 2013) Chevy Corvette Possible Mechanical Problems
This Corvette generation is generally reliable, but like any car, it does have some known mechanical issues that some owners have experienced over time which should therefore be included in a mechanical inspection before buying:
Valve Guide Wear (LS7 Engine in Z06 Models): The LS7 engine is known to have valve guide wear issues. The guides can wear prematurely, which may eventually lead to engine failure if not detected and repaired. Symptoms include increased engine noise and poor performance.
Automatic Transmission: The 6-speed automatic transmission (6L80) can develop issues, especially at higher mileages. Problems include harsh shifts, slipping gears, or even complete transmission failure.
Manual Transmission: The Tremec T56 6-speed manual is more robust, but owners have reported problems with gear synchronizers, making shifts harder or grinding gears, particularly in earlier models.
Electrical Problems: Electrical gremlins are somewhat common in the C6. This includes issues with the car’s body control module, door actuators, and heads-up display (HUD). Faulty wiring can also cause problems with window regulators and lights.
Targa Top Leaks and Rattles: C6 models with the removable targa top sometimes suffer from leaks or rattles as the seals wear over time. Some owners have also experienced the roof panel delaminating.
Steering Column Lock: Some early models (2005-2006) had issues with the steering column lock malfunctioning. This could lead to the car not starting or the steering wheel becoming locked unexpectedly.
Fuel Pump or Fuel System Issues: Some C6 models have reported fuel pump failures or fuel delivery issues, particularly in cars with higher mileage. Additionally, there have been cases of fuel tank leaks due to cracks in the tank.
Suspension Wear: Over time, suspension components like bushings, shocks, and ball joints can wear out, leading to a rougher ride or poor handling. This is especially true in performance models like the Z06 or ZR1.
Oil Leaks: Like many high-performance cars, oil leaks from seals or gaskets (especially from the rear main seal) are fairly common in the C6 as it ages.
Differential Problems: Some C6 owners have reported differential failures, particularly in models driven aggressively. Symptoms of a failing differential include whining or grinding noises from the rear of the car.
Cooling System: Overheating can be an issue, especially in performance models like the Z06 and ZR1, which are pushed hard on the track. The factory cooling system, while adequate for street use, sometimes struggles under heavy track conditions.
While these issues exist, many C6 Corvettes remain reliable, especially when well-maintained. Key is to stay on top of regular maintenance, address minor issues before they escalate, and have a thorough pre-purchase inspection if you're considering buying one.
Sixth Generation (2005 - 2013) Chevy Corvette Overview
Ratings for this version were through the roof. To name just a few: Pick the year, it's pretty much an annual winner of Edmunds.com's prestigious "Consumers Most Wanted" and "Editors Most Wanted" awards. It's one of Cars.com's "Best Bets" and J.D. Power gives it its top rating for Performance, Style, and Feature And Accessory Quality.
This version was yet another step up ... going from 0 to 60 in less than 5 seconds, the 1/4 mile in less than 13, and a top speed of 180+ mph. And that's for the standard vette.
The Z06 hits 60 mph in the low 4's, does the 1/4 in the low 12's, and top speed approaches 200 mph.
But speed is far from the Corvette's only calling card. Its head-turning design is recognized instantly across the globe. And let's also add both comfort and razor-sharp handling to the list. Actually, even the gas mileage is impressive on a relative basis.
The C6 made its debut for the 2005 model year and brought with it improved performance, build quality, and styling. The suspension was revised and provided both more precise handling as well as a composed ride. This is especially true for models outfitted with the optional Magnetic Ride Control.
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Styling changes included more pronounced fender peaks, a slimmer rear end and a return to the exposed headlamps of pre-'63 models.
Initially, the engine for these Vettes was a 6.0-liter V8 good for 400 horsepower, while the interior was also upgraded with higher-quality materials and a power convertible-top was made available for the first time.
The 2006 model year saw the introduction of the 505-horsepower 7.0-liter Z06 Corvette and a new 6-speed automatic transmission. In 2007, an Indy Pace Car convertible and the Ron Fellows Z06 were brought in, a two-tone leather interior became available and models with Magnetic Ride Control also got larger brakes.
Base models got a power boost in 2008 via the 6.2-liter V8, while improvements in steering, manual transmission and the interior also took place.
The ZR1 made its debut in the 2009 model year, while 2010 brought the new Grand Sport model, which basically replaced the previously offered Z51 handling package.
Things To Do When Considering An Older Corvette
1. When Shopping For An Older Corvette:
Locate Lower Mileage Vehicles: They are certainly out there to be found with careful and patient shopping. Be willing to drive a distance if you have to.
Vehicle History and Maintenance: Ask for the vehicle history report (CarFax or AutoCheck) as well as documented maintenance and repair records. If not provided by the dealer or private seller, it's best to move on.
Pre-Purchase Inspection: Have the vehicle independently inspected before making a final decision. This usually will cost in the $150-$200 range but is well worth it given the potentially thousands in savings over the long term.
2. Know How To Get The Lowest Used Car Price:
Get Dealers To Compete For your Business: When you are searching vehicles to possibly purchase, the following is the absolute best way to get the lowest price, and it is extremely easy and stress-free.
Just go to a national car listing site, (I happen to prefer CarsDirect.com for their massive dealer participation and ease of use, although others will get the job done as well) and find several listed vehicles that you may be interested in.
Then write something like the following in the "Check Availability" box or "Contact Dealer" box or whatever the site you are using uses.
"Hello, I've contacted several dealers about cars I am interested in and am looking for the best value. I am also a serious buyer planning to make a decision soon. Please send me your best out-the-door price. Thank you.
After receiving the offers, follow up by explaining that based on the price, you're leaning in another direction but still really like their car and would certainly consider another offer. When dealers drop out, you'll know you're at the best price.
Using the internet to get dealers to compete for your business is extremely important. More details on this and how to intereact with the dealers can be found here at Best Used Car Buying Techniques.