Most buyers assume that, since luxury cars are expensive, their maintenance costs do not come cheap either. However, thanks to modern technology and endless improvement in this sector, many luxury cars now boast economical running costs. One key reason why this is possible is improved fuel efficiency, and if drivers know how to maintain their units, even preloved cars can remain reliable.Owning a used luxury car is always an option for those looking for a dependable road companion. Sure, there will always be cons when buying second-hand, but opting for reliable models and all the cost savings that come from buying a depreciated model more than offset any risks. Let's look at some of the most fuel-efficient used luxury cars that will allow you to ride in style and save money at the pump at the same time.

8 2015 Lexus ES 300H

What makes the Lexus ES 300H one of the best hybrid cars is its impressive driving prowess. It has an efficient powertrain that can deliver 200 horsepower and acceleration of 7.8 seconds from zero to 60 mph while still retaining a smooth and comfortable driving experience. Driving this executive car is easy.

Continuing with its strong numbers, the United States Environmental Protection Agency estimates the ES 300H has 40 combined MPG fuel consumption. And the better part? Used units can be scored for less than $20,000. What else is there to say? This Lexus is a performer.

RELATED: A Look Back At The Lexus SC430

7 2016 Lincoln MKZ Hybrid

A second-hand MKZ Hybrid can be yours for less than $20,000 — a bargain considering the features and performance it offers. The MKZ Hybrid also has a 40 combined MPG, and just its base trim package alone offers a dynamic driving experience.

The 2016 model is packed with 300 hp and 277 lb-ft torque, making it an agile sedan for drivers who want to go on and on. This car exudes confidence just by looking at its exquisite interior. Add to that its innovative technology, and the MKZ makes for a great road pal.

6 2016 Lexus CT 200h

2016 Lexus CT 200h
Via Car and Driver

There are many impressive things that drivers should know about the Lexus CT 200h. Firstly, it is considered the “world’s first luxury hybrid electric hatchback.” Its hybrid powertrain will not thrill with its 134 hp, but it will deliver solid performance and reliability.

2016 Lexus CT 200h
via: amazonaws.com

This trailblazer offers some good fuel economy numbers: 42 combined MPG. The most important number? A preloved unit can be scored for around $22,000. It might be discontinued, but this Lexus made a mark.

RELATED: Lexus LFA: Costs, Facts, And Figures

5 2015 BMW 328d

2015 BMW 328d
via: bmwgroup.com

This sedan is powered by a 2.0-liter diesel four-cylinder engine producing 180 horsepower and 280 lb-ft of torque. This five-seater BMW can go from zero to 60 mph in 7.8 seconds, and fuel economy is estimated to be 37 combined mpg.

2015 BMW 328d
via: bmwgroup.com

BMW is proud that with the help of its advanced diesel tech, the 328d units are considered "clean diesel." The combination of luxury and performance of this BMW model makes it a prime example of making standard features as premium as they can be. All that for around $16,000.

4 2015 Mercedes-Benz E250 BlueTEC

The BlueTEC has been known for its clean diesel technology, and any cars loaded with it are fuel-efficient. The Mercedes-Benz E250, for instance, offers 41 mpg and has an impressive acceleration of 7.9 seconds from zero to 60 mph.

As expected for a Mercedes-Benz, the ride comfort and handling properties are commendable, too. The E250 is an improvement over its E-Class predecessors, from the excellent interiors to reliable safety features such as the advanced adaptive cruise control system.

RELATED: How And Why The Mercedes-Benz CLK GTR Was Developed

3 2014 Cadillac ELR

The 2014 Cadillac ELR's Front View
via netcarshow

A detailed look at the 2014 Cadillac ELR will have drivers in awe. This coupe, though short-lived, made sure to deliver excellence. It has a 340-mile full driving range and 82 combined mpg-equivalent. What’s more, it has an extended-range electric vehicle technology that lets drivers just go on and on.

The 2014 Cadillac ELR's Design
Cadillac

The EREV, in turn, adds to the precise handling properties of this car, and combined with an improved suspension system and advanced chassis, the ELR means business. A responsive ride is always possible, even with a second-hand unit.

2 2015 Infiniti Q70 Hybrid

2015 Infiniti Q70 Hybrid
via: amazonaws.com

The Q70 Hybrid stands out when it comes to luxury driving. It offers vast improvements over its Infiniti cousins, such as improved aesthetics and advanced safety features (collision warning and brake assist).

2015 Infiniti Q70 Hybrid
via: amazonaws.com

Hybrid lovers can score the Q70 for around $20,000, and it's worth every penny thanks to 31 combined mpg and a 0-60 mph acceleration of 5.6 seconds. This midsize Infiniti is all about luxury, efficiency, and power, and driving it is pure bliss.

RELATED: How The 2022 Infiniti QX55 Compares To The 2022 Acura RDX

1 2015 BMW 535d

This five-seater BMW can be scored for around $20,000 and is a worthy pal for drivers who want to take on miles and miles of road. That's expected because this coupe has 30 combined mpg and a range of 481/703 miles (city/highway).

The 535d is loaded with a twin-turbo engine—a first for a diesel road vehicle. Thanks to the powerful engine, this BMW can go from zero to 60 mph in a stunning 5.5 seconds. Easy on the eyes and a breeze to handle, the 535d is a marvel.