Hyundai Sonata
Reliability is a tricky business with automobiles. They are increasingly complex mechanical and electronic objects with thousands of parts, any one of which can fail at any time. Plus, says Michael Pecht, a reliability expert with the Center for Advanced Life Cycle Engineering at the University of Maryland, many companies outsource complex electronic parts such as engine control modules, and just assume they will work with their vehicles. "However, often there are no statistically acceptable accelerated tests conducted on the vehicle as a whole," he says. In other words, many of the complex systems in a modern vehicle might be linked by a bond of pure faith.
Yet, amazingly, today's high-tech autos seem to work — and more reliably than ever before. Dave Sargent, vice president of vehicle research at J.D. Power and Associates, which performs the industry-standard Initial Quality and Vehicle Dependability studies, says that the company's research has shown steady improvement in vehicle quality across the board every year. "Basically, we've seen about a 5 percent reduction in the number of problems reported each year," Sargent says. "So if you buy a 2011 model-year vehicle, chances are that it will have fewer problems in its first five years than if you had bought a 2010 vehicle."
While buying a new vehicle is good advice if long-term reliability is your goal, it doesn't really address questions about individual models. Studies such as J.D. Power's vehicle dependability survey are inherently backward-looking, so they do not tell the whole story. So how, for example, can you assess the potential reliability of a new model or redesign? "We wrestle with that question," Sargent says. "The easiest way to determine long-term reliability is to wait a long time. It's hard to predict the reliability of a new car, by definition."
While predictions are not foolproof, they're also not impossible to make. We've cross-referenced analysis of J.D. Power's Initial Quality and Vehicle Dependability studies, and thrown in a few extra points for any vehicle or manufacturer that has shown significant momentum toward quality improvement over the past few years. The resulting list of cars should have just the right recipe for long-term reliability: Start with a good reputation, then stir in some well-earned faith.
Bing: Car Dependability Rankings
Let's start with something obvious. The Honda Accord has scored between 3.5 and 5 — the top rating — every year for the past 10 years on both J.D. Power's Initial Quality and Overall Dependability studies, which rank user satisfaction in the first year and the third year of ownership, respectively. Luckily for Honda, neither study quantifies excitement, which is pretty hard to muster when you're driving one of the plainest-looking and -driving sedans on the market — and harder still when you realize that for less than the Accord's $21,180 base price, you can find a more exhilarating vehicle in either the Nissan Altima or the Ford Fusion.
Read: 2011 Honda Accord — Flash Drive
Here's a vehicle that has scored a perfect 5 in J.D. Power's survey of Initial Quality for the past six years and between 3.5 and 5 in Overall Dependability for four out of the past five years. While most Porsche owners are reluctant to breathe a bad word about the brand for fear of being tossed out of the "club," there has to be something behind years of stellar satisfaction ratings. And if you're paying a base price of $77,800 — and nobody ever pays base price on a Porsche 911 — you have a right to demand perfection.
Read: Porsche Makes the Most Dependable Cars
The LaCrosse was overhauled in 2010 from its Geritol-friendly earlier design to a new shape and chassis that is about as sprightly and sexy as this brand is likely to get. A dose of re-engineering is likely to dip any model's satisfaction numbers a bit while the manufacturer works out some of the kinks — Sargent recommends that buyers steer clear of a new redesign for at least a year — which makes the 2011 Buick LaCrosse a pretty safe bet. Plus, starting at $26,995, the LaCrosse is a pretty good deal for a big car with a smooth ride and a quiet interior. It's like somebody slipped a little Viagra in with the Geritol.
Watch Video: 2011 Buick LaCrosse
Why is a car we haven't even seen yet on this list? Well, first off, we're sticking to the "give 'em a year to get the kinks out" philosophy. Secondly, rumor has it that next year Hyundai may upgrade the Equus' competent 4.6-liter V8 engine with an even more competent 5.0-liter V8. It took cojones for Hyundai to produce the Equus, a $58,000-plus, limolike sedan that takes straight aim at the Mercedes S-Class and Lexus LS. But the Equus is an insanely comfortable, quiet and indulgent vehicle that, next to offerings from Mercedes, BMW and Lexus, is also an insanely good deal.
Read: Hyundai Goes Upscale
Since its introduction in 2006, the Ford Fusion has delivered impressive build quality and reliability. The 2010 redesign has made this midsize sedan even more appealing. Some of Ford's newer introductions, such as the relaunched Fiesta and upcoming Focus, have stolen some of the Fusion's econocar thunder, but there's no denying the record of satisfaction and value that this bargain 4-door — starting at $19,720 — has established. In the most recent J.D. Power rankings, it scored an impressive 5 in overall initial quality.
Bing Images: Ford Fusion