Buying a car is not a one-time payment. Too often, people don't think about how much it costs to own a car over its lifetime. Between gas, depreciation, maintenance and other expenses, you'll continue to sink money into your vehicle for a long time after you pay for it at the dealership.

The reality is that you should absolutely factor these costs into you purchasing decision. After all, one car may seem affordable solely based on its sticker price. But taking these long-term costs into account could quickly make it a much more expensive machine than you thought.

Consumer Reports recently released the results of a study that showed the cars that cost the most to own over time, factoring in depreciation, fuel costs, loan interest, insurance premiums, sales tax, and maintenance and repairs. Click through to see the cars that are the most expensive to own in their respective segments, according to testing, and find out which will cost you big money over the long term.

Subcompact Car: Hyundai Veloster

Sticker Price: $17,800 - $22,300
Invoice Price: $17,172 - $21,225
Fuel Economy: 26 mpg City, 35 mpg Highway

Cost Over First Five Years (trim): $32,400

The Hyundai Veloster is a sporty, three-door hatchback that comes with sharp looks, fun driving dynamics and versatility. Reliability is an issue with this car, however, which makes it the most expensive subcompact to own, according to Consumer Reports. For comparison, the cheapest subcompact to own, the Toyota Prius c, only costs $24,600 over the first five years.

Research the Hyundai Veloster
Hyundai Veloster Overview
Hyundai Veloster Photos & Video
Hyundai Veloster Local Dealer Price Quote

Compact Car: Dodge Dart

Sticker Price: $16,495 - $22,995
Invoice Price: $16,449 - $22,364
Fuel Economy: 25 mpg City, 36 mpg Highway

Cost Over First Five Years: $37,200

The Dodge Dart is a sharp car, but it hasn't been a strong seller nor has it received much praise from critics. Its uncomfortable interior and lackluster driving dynamics are mostly to blame for this. The Dart in its Aero trim is the most expensive compact car to own, according to Consumer Reports, with a predicted cost of $37,200 over the first five years of ownership.

Research the Dodge Dart
Dodge Dart Overview
Dodge Dart Photos & Video
Dodge Dart Local Dealer Price Quote

Midsize Car: Volkswagen Passat

Sticker Price: $20,845 - $34,265
Invoice Price: $19,990 - $32,860
Fuel Economy: 22 mpg City, 32 mpg Highway

Cost Over First Five Years: $45,600

The Volkswagen Passat boasts great driving dynamics and a nice European-styled interior. The car is also quite spacious and fuel efficient, as well. The sedan's reliability can lead to some costly repairs however, helping to make it the most expensive midsize car to own. The Passat SEL with a V6 engine has an estimated five-year cost of $45,600.

Research the Volkswagen Passat
Volkswagen Passat Overview
Volkswagen Passat Photos & Video
Volkswagen Passat Local Dealer Price Quote

Large Car: Chrysler 300C

Sticker Price: $37,280 - $44,180
Invoice Price: $35,562 - $41,910
Fuel Economy: 19 mpg City, 31 mpg Highway

Cost Over First Five Years: $55,800

The Chrysler 300C is a super comfortable large sedan, with a great interior and excellent infotainment system. Fuel economy is a problem, though, that will result in some serious pain at the pump over the course of ownership. As a result, the 300C costs a lot over the first five years. More than $55,000, in fact.

Research the Chrysler 300C
Chrysler 300C Overview
Chrysler 300C Photos & Video
Chrysler 300C Local Dealer Price Quote

Upscale Sedan: Lexus IS 250

Sticker Price: $36,100 - $38,635
Invoice Price: $33,573 - $35,930
Fuel Economy: 21 mpg City, 30 mpg Highway

Cost Over First Five Years: $54,000

The Lexus IS 250 sports sedan is an engaging, attractive option if you're looking for a luxury car. A big issue with the IS 250 is its fuel economy. Achieving a paltry 21 mpg in the city (which is quite bad for a car this size), owners are going to be at the pump more often than they want. This translates into a high cost of ownership.

Research the Lexus IS 250
Lexus IS 250 Overview
Lexus IS 250 Photos & Video
Lexus IS 250 Local Dealer Price Quote

Luxury Sedan: BMW 750

Sticker Price: $87,300 - $94,000
Invoice Price: $80,315 - $86,480
Fuel Economy: 17 mpg City, 25 mpg Highway

Cost Over First Five Years: $106,200

The big, luxurious BMW 750 is one of the plushest cars around. The interior is deathly silent and luxurious features abound. Of course, all of this comes at a price. According to Consumer Reports, the 750 in the Li trim has an estimated cost of ownership of $106,200 over five years.

Research the BMW 750
BMW 750 Overview
BMW 750 Photos & Video
BMW 750 Local Dealer Price Quote

Sporty Car: Porsche Boxster

Sticker Price: $50,400 - $62,100
Invoice Price: NA
Fuel Economy: 20 mpg City, 30 mpg Highway

Cost Over First Five Years: $64,200

Sublime driving dynamics don't come cheap. The Porsche Boxster is one of the best-driving cars money can buy, with its sporty steering, potent engine and perfect weight balance. But that comes at a high price. The Boxster has an estimated cost of $64,200 over the first five years after factoring in depreciation, fuel economy, repairs and other expenses.

Research the Porsche Boxster
Porsche Boxster Overview
Porsche Boxster Photos & Video
Porsche Boxster Local Dealer Price Quote

Small SUV: Volkswagen Tiguan

Sticker Price: $23,305 - $38,835
Invoice Price: $22,373 - $37,282
Fuel Economy: 18 mpg City, 26 mpg Highway

Cost Over First Five Years: $48,000

The Volkswagen Tiguan is a solid small SUV, though it's not a segment leader (Mazda CX-5 and Subaru Forester are among the best). It has a nice interior and great ride, but fuel economy and reliability are problems that amount to a high cost of ownership. According to Consumer Reports, opting for a Tiguan SEL will cost $48,000 over the first five years.

Research the Volkswagen Tiguan
Volkswagen Tiguan Overview
Volkswagen Tiguan Photos & Video
Volkswagen Tiguan Local Dealer Price Quote

Midsize SUV: Jeep Grand Cherokee

Sticker Price: $29,395 - $64,380
Invoice Price: $28,987 - $61,191
Fuel Economy: 17 mpg City, 25 mpg Highway

Cost Over First Five Years: $57,000

Luxurious, handsome and capable on nearly any type of terrain, the Jeep Grand Cherokee is a top-notch SUV. But it's a pricey one to keep in your garage. Reliability and fuel economy are major points of concern with this vehicle. Owners of a Grand Cherokee Limited with a V8 engine can expect to shell out $57,000 in the first five years.

Research the Jeep Grand Cherokee
Jeep Grand Cherokee Overview
Jeep Grand Cherokee Photos & Video
Jeep Grand Cherokee Local Dealer Price Quote

Large SUV: Nissan Armada

Sticker Price: $37,240 - $52,510
Invoice Price: $34,296 - $48,338
Fuel Economy: 13 mpg City, 19 mpg Highway

Cost Over First Five Years: $72,000

You don't see this big brute of an SUV too often these days. That may be due to its staggeringly high cost of ownership, which is brought on by its terrible fuel economy and poor reliability. According to the Consumer Reports study, the Nissan Armada Platinum costs a whopping $72,000 over the first five years of ownership.

Research the Nissan Armada
Nissan Armada Overview
Nissan Armada Photos & Video
Nissan Armada Local Dealer Price Quote

Compact Luxury SUV: Cadillac SRX (tie)

Sticker Price: $37,605 - $51,155
Invoice Price: $35,537 - $47,830
Fuel Economy: 17 mpg City, 24 mpg Highway

Cost Over First Five Years: $57,000

The Cadillac SRX is a capable luxury SUV, with a nice interior and handsome design, as well as sporty driving dynamics. But relatively poor fuel economy and shaky reliability make owning the SRX a pricey endeavor. According to Consumer Reports, the SRX in the Luxury trim level costs $57,000 over the first five years.

Research the Cadillac SRX
Cadillac SRX Overview
Cadillac SRX Photos & Video
Cadillac SRX Local Dealer Price Quote

Compact Luxury SUV: Mercedes-Benz GLK350 (tie)

Sticker Price: $37,480 - $39,480
Invoice Price: $34,856 - $36,716
Fuel Economy: 19 mpg City, 26 mpg Highway

Cost Over First Five Years: $57,000

The Mercedes-Benz GLK350 is a solid luxury SUV that has a nice interior, lots of versatility, sporty driving dynamics and great visibility. The GLK350 matched the Cadillac SRX with a high cost of ownership of $57,000 over the first five years, however. Although the vehicle has good reliability, fuel economy isn't stellar.

Research the Mercedes-Benz GLK350
Mercedes-Benz GLK350 Overview
Mercedes-Benz GLK350 Photos & Video
Mercedes-Benz GLK350 Local Dealer Price Quote

Midsize/Large SUV: Mercedes-Benz GL350 BlueTec

Sticker Price: $63,000
Invoice Price: $58,590
Fuel Economy: 19 mpg City, 26 mpg Highway

Cost Over First Five Years: $78,000

With seating for seven people and a wealth of luxury features, the Mercedes-Benz GL-Class is a capable and comfortable, albeit expensive, family vehicle. Like the other SUVs on this list, reliability and fuel economy result in a high cost of ownership. According to Consumer Reports, the GL350 BlueTec costs $78,000 over the first five years.

Research the Mercedes-Benz GL350 BlueTec
Mercedes-Benz GL350 BlueTec Overview
Mercedes-Benz GL350 BlueTec Photos & Video
Mercedes-Benz GL350 BlueTec Local Dealer Price Quote