
With rising fuel costs and increasing environmental concerns, it is no surprise that consumers are seeking luxury vehicles that offer not just comfort and style but also fuel efficiency. While electric vehicles are becoming an increasingly popular alternative, there remains a demand for powerful, sleek, and opulent cars that deliver impressive gas mileage. This introduction will explore the most fuel-efficient luxury cars, examining factors such as engine performance, interior design, handling, and real-world fuel economy tests to provide a comprehensive overview of the best options available in the market today.
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What You'll Learn

BMW 2 Series
When it comes to luxury cars with good fuel efficiency, there are several options to consider. Firstly, the 2024 Audi A4, specifically the A4 TSFI 40 variant, stands out for its fuel efficiency and elegant interior. The Audi A5 Sportback also offers excellent fuel economy and a plush driving experience. Moving to Mercedes-Benz, the 2024 CLA 350 with FWD combines luxury and performance, delivering a smooth ride and a high-quality interior. The BMW 5 Series, particularly the 530i and 530i xDrive configurations, offers powerful and fuel-efficient powertrains. Now, let's delve deeper into the BMW 2 Series.
The BMW 2 Series, introduced in 2014, is a subcompact executive car that offers both sporty performance and good fuel economy. It has several engine options, including the 2.18d, 2.18i, 2.20d, and M235i. The 2.18d engine, a diesel type engine, is the most economical option, producing 150 HP and 4000 RPM Torque while delivering fuel efficiency. The 2 Series also comes with a turbo 2.0-liter 4-cylinder engine, providing a refined and smoothly operating experience, especially in city driving situations.
While the BMW 2 Series has an impressive fuel economy, it's important to consider the associated costs. All 2 Series models attract an annual road tax of £150, and those with a list price over £40,000 incur an additional surcharge of £325 per year from the second to sixth year of ownership. This brings the annual bill during that period to £475. Additionally, the 2 Series Coupe models fall into the top two bands for Benefit-in-Kind (BiK) tax for company car drivers.
In terms of reliability, the BMW 2 Series comes with a three-year unlimited mileage warranty, which is on par with premium rivals like Audi and Mercedes-Benz. While it's too early to make definitive judgments about the reliability of the 2025 model, the shared mechanical parts with the reliable 3 Series and 4 Series range from BMW are reassuring. BMW also offers servicing plans to help spread out the cost of maintenance, including a one-off payment option for the first four years of services.
Overall, the BMW 2 Series, particularly the 230i coupe for maximum fuel efficiency, presents a fun and sporty option in the luxury car segment without compromising on fuel economy. The refined engine, upscale interior, and warranty coverage make it a compelling choice for those seeking a balance between performance and efficiency.
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Audi A4
The Audi A4 is a highly-regarded luxury daily driver, with the most fuel-efficient variant being the A4 TSFI 40. The A4 TSFI 40 gets 26 miles per gallon in city driving, which is a respectable fuel economy. The taut suspension and standard all-wheel drive deliver confident, sporty driving dynamics. The interior features leather upholstery, heated seats, and metal trim, creating an elegant and luxurious feel. The Audi A4 also has a sharp, contemporary design, with a functional and plush interior.
The Audi A4 offers flexible servicing, which is recommended for drivers with high annual mileage. This allows drivers to go up to 19,000 miles or two years between major services. For those who drive shorter distances, Audi also offers fixed servicing, which is more suitable for town and city drivers who make frequent, short trips. This option requires servicing at fixed intervals of 9,000 miles or once a year.
The greenest Audi A4 model can return over 50 miles per gallon, and some drivers have reported even higher fuel efficiency. One driver reported achieving 36.4 miles per gallon on a 185-mile trip, exceeding the EPA estimate.
The Audi A4 is a great choice for those seeking a luxurious and fuel-efficient vehicle, offering a combination of performance, elegance, and practicality. With its flexible servicing options and impressive fuel economy, the Audi A4 is well-suited for both city driving and longer trips.
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$11.95 $12.99

Mercedes CLA
The Mercedes-Benz CLA is a compact coupe-styled luxury car that combines the signature luxury of Mercedes with powerful performance. The CLA handles well, rides smoothly, and comes with a range of technological features that enhance its powertrain efficiency.
The CLA 350 with FWD is the most fuel-efficient model in the lineup. The 2023 CLA features a turbocharged 2.0-liter four-cylinder engine that boosts the power output to 221 hp and 258 lb.-ft. of torque. The engine is assisted by a responsive 7-speed dual-clutch automatic transmission with paddle shifters. The front-wheel-drive system comes as standard, while the 4MATIC all-wheel-drive system is available as an option.
The CLA achieves impressive fuel economy ratings, with up to 25 mpg in city driving and 36 mpg on the highway, resulting in a combined driving range of around 411 miles on a single tank. The plug-in hybrid CLA 250e delivers even higher fuel efficiency, with official testing showing figures of 256.8-313.9 mpg and a battery-only range of 44-47 miles.
The CLA's real fuel consumption can be calculated as the amount of fuel consumed in litres for every 100 km travelled, which is the most commonly used metric for fuel consumption. This figure can be calculated using the formula: (Litres of fuel used X 100) / Kilometers travelled = L/km.
While the CLA offers excellent fuel efficiency and performance, it is important to note that there have been reports of technical glitches and teething problems with the model. However, with the 2023 refresh, many of these issues may have been addressed.
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Lexus UX
When it comes to fuel efficiency, the Lexus UX is a standout performer in its class. The 2019 model, in particular, offers impressive fuel economy, whether you choose the gas-only UX 200 or the hybrid UX 250h.
Let's take a closer look at the UX 200. This front-wheel-drive vehicle delivers an EPA-estimated 29 miles per gallon (mpg) in city driving, 37 mpg on the highway, and a combined 33 mpg. These figures are significantly better than many of its key competitors. For example, on a round trip from Evanston, Illinois, to Detroit, the UX 200 achieved a gas pump-based fuel economy of 36.4 mpg, even with speeds averaging 63-64 mph.
Now, if you're seeking even greater fuel efficiency, the UX 250h hybrid model is the way to go. The front-drive version provides an EPA-rated 43 mpg in the city, 41 mpg on the highway, and a combined 42 mpg. Even the all-wheel-drive models come close, with ratings of 41 mpg in the city, 38 mpg on the highway, and a combined 39 mpg.
While the UX has the sleek, luxurious look of a Lexus SUV, both inside and out, its driving experience is more akin to that of an economy car. Nevertheless, the Lexus UX, especially in its hybrid form, is a testament to Lexus's commitment to fuel efficiency, as seen across its lineup of sedans and SUVs.
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Jaguar I-Pace
The Jaguar I-Pace is an all-electric vehicle (EV) that was first introduced in late 2018. It stands out for its distinct exterior design, refined interior, and enticing driving demeanour, offering a rare character in a segment focused on digital appeal.
The I-Pace has a stylish exterior complemented by a sophisticated cabin with flashy displays. The standard sport seats are nicely bolstered but may be less comfortable on long trips, so it is recommended to try the performance seats. The versatile centre console offers a useful bin under the armrest and a tray below the centre stack. The Meridian sound system, 10-inch infotainment display, and cross-stitched leather in vibrant colours add to the luxurious feel.
In terms of fuel economy, the Jaguar I-Pace delivered a real-world highway range of around 190-200 miles, which is slightly less than advertised. When tested on a 75-mph highway fuel-economy route, it achieved 64 MPGe, which is 8 miles less than its highway rating.
The I-Pace is available in S, SE, and HSE specs, with prices starting from £63,495 in the UK (excluding government incentives) and $73,275 in the US. The higher-end I-Pace 400PS Electric HSE is priced at £74,445. While the I-Pace may not be the most affordable option, it has received high ratings and is known for its impressive performance and desirable features.
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Frequently asked questions
Some of the most fuel-efficient luxury cars include the 2024 Audi A4, the 2024 CLA Mercedes-Benz, the 2024 BMW 5 Series, the 2025 Acura Integra, the 2019 Lexus UX, the 2019 Infiniti QX50, the BMW X3, the 2014 Lexus ES300H hybrid, the BMW 2 Series, and the BMW 320d.
Some fuel-efficient luxury SUVs include the 2019 Infiniti QX50, the BMW X3, the Jaguar I-Pace, the Porsche Macan, and the Lexus RX 350.
Some fuel-efficient luxury sedans include the 2024 Audi A4, the 2024 CLA Mercedes-Benz, the 2024 BMW 5 Series, the 2025 Acura Integra, and the 2014 Lexus ES300H hybrid.



































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