2018 Acura RLX (facelift 2017) Dimensions, Size & Specs

Production
Model Year:2018
Production Years:2017 - 2020 discontinued in 2020
1465 mm57.7 in4.8 ft
5023 mm197.8 in16.5 ft
1465 mm57.7 in4.8 ft
5023 mm197.8 in16.5 ft
1465 mm57.7 in4.8 ft
1890 mm74.4 in6.2 ft
1465 mm57.7 in4.8 ft
1890 mm74.4 in6.2 ft
1465 mm57.7 in4.8 ft
5023 mm197.8 in16.5 ft
1465 mm57.7 in4.8 ft
1890 mm74.4 in6.2 ft
1465 mm57.7 in4.8 ft
1890 mm74.4 in6.2 ft
Length
5023 mm197.8 in16.5 ft
Width
1890 mm74.4 in6.2 ft
Height
1465 mm57.7 in4.8 ft
Trunk Capacity
405 liter14.3 cu ft
Technical Details

Exterior Dimensions

Precise measurements of the 2018 Acura RLX, engineered for optimal performance and comfort

Dimensions
Length:5023 mm197.8 in16.5 ft
Width:1890 mm74.4 in6.2 ft
Height:1465 mm57.7 in4.8 ft
Ground Clearance:115 mm4.5 in0.4 ft
Trunk Capacity:405 liter14.3 cu ft
Weight Specifications
Curb Weight:1804 - 1987 kg3977 - 4381 lbs
Tire Specifications
Rims Size:8.0J x 19
Tire Size:245/40 R19 (W:245 | H:40 | D:19)
Useful Information

About 2018 Acura RLX

The 2018 Acura RLX facelift represents a refined iteration of Acura’s flagship luxury sedan, produced between 2017 and 2020. This midsize sedan combines elegant styling with advanced technology and comfort, making it a competitive option in the luxury car segment. Measuring 5023 mm (197.7 inches) in length, the RLX provides substantial presence and spacious cabin volume, contributing to passenger comfort. Its width is 1890 mm (74.4 inches), offering a stable stance on the road, while the height of 1465 mm (57.7 inches) ensures a sleek silhouette without compromising headroom.

The vehicle’s curb weight ranges from 1804 to 1987 kg (3980 to 4381 lbs), reflecting its solid build quality and premium materials. The RLX’s ride height or ground clearance stands at 115 mm (4.5 inches), which is typical for luxury sedans, balancing ride comfort with confident handling. On the practical side, the RLX boasts a luggage capacity of 405 liters (14.3 cubic feet), suitable for daily needs and longer trips.

This generation rides on 19-inch rims sized 8.0J x 19, paired with tires sized 245/40 R19, contributing to both aesthetics and road grip. The combination of size, weight, and tire setup ensures a smooth, controlled driving experience with enhanced cornering stability. Overall, the 2018 Acura RLX facelift remains a noteworthy choice for buyers seeking a spacious, well-appointed luxury sedan with competitive dimensions and a focus on comfort and performance.

Exceptional Features

2018 Acura RLX Highlights

Discover the standout features that make the 2018 Acura RLX a leader in its class

Engine and Performance

The 2018 Acura RLX is powered by a 3.5-liter V6 engine producing 310 horsepower, paired with a 10-speed automatic transmission for smooth acceleration and efficient power delivery.

Super Handling All-Wheel Drive (SH-AWD)

The RLX features Acura’s advanced SH-AWD system, which enhances handling and stability by distributing torque independently to each wheel, improving cornering performance and traction on various road conditions.

Technology and Infotainment

Equipped with a dual-screen infotainment system including a high-resolution display and an intuitive touchpad controller, the RLX offers navigation, smartphone integration, premium audio options, and various connectivity features.

Luxury and Comfort

The facelifted 2018 model includes upgraded leather upholstery, heated and ventilated front seats, a spacious cabin with premium materials, and a quiet ride enhanced by noise-reducing measures.

Safety Features

The 2018 RLX comes with AcuraWatch suite including adaptive cruise control, collision mitigation braking system, lane keeping assist, road departure mitigation, and a multi-angle rearview camera for enhanced driver safety.
Frequently Asked Questions

FAQ

Have a question? Please check our knowledgebase first.

The 2018 Acura RLX facelift measures 5023 mm (197.7 inches) in length, 1890 mm (74.4 inches) in width, and 1465 mm (57.7 inches) in height. This places the RLX firmly in the full-size luxury sedan category, offering ample presence on the road along with spacious interior accommodations. Its relatively low height adds to the sleek profile without compromising cabin space significantly.

The curb weight of the 2018 Acura RLX facelift ranges from approximately 1804 kg (3978 lbs) to 1987 kg (4380 lbs), depending on the configuration and options. The heavier weight stems from its robust build and luxury equipment, contributing to a stable, comfortable ride, although it may result in moderate fuel consumption compared to lighter sedans. The weight distribution supports balanced handling characteristics for a smooth and controlled driving experience.

The 2018 Acura RLX facelift provides a luggage capacity of 405 liters (approximately 14.3 cubic feet). This amount of cargo space is quite adequate for typical daily errands or weekend trips, offering room for suitcases, shopping bags, or sports equipment. While not the largest trunk in its class, it delivers a practical balance of passenger comfort and cargo accommodation for a luxury full-size sedan.

The 2018 Acura RLX facelift features a ground clearance of 115 mm (4.5 inches), which is typical for low-slung luxury sedans prioritizing aerodynamics and handling precision. This clearance is sufficient for most urban driving conditions, including speed bumps and minor road imperfections, but it advises caution on very uneven or unpaved surfaces where low clearance might risk scraping the underbody.

The facelifted RLX is equipped with 19-inch rims sized 8.0J x 19 paired with tires sized 245/40 R19. These larger wheels and low-profile tires enhance the car's sporty appearance and cornering ability by reducing sidewall flex during aggressive driving. However, they may slightly reduce ride comfort compared to smaller wheels due to less tire cushioning but contribute positively to handling precision and road grip.

The standard residential garage typically measures about 2400 mm (94.5 inches) wide and 5400 mm (212.6 inches) deep. With the RLX facelift's length of 5023 mm (197.7 inches) and width of 1890 mm (74.4 inches), it fits comfortably into a standard two-car garage with sufficient clearance on all sides. Users should still measure their own garage due to variance in door widths and additional storage space requirements but generally, the RLX does not pose parking challenges in standard garages.

The 2018 Acura RLX facelift maintained the same platform and closely similar dimensions as the original 2014-2017 RLX, with length around 5020 mm, width near 1890 mm, and height near 1460 mm. The facelift primarily introduced updated styling, technology upgrades, and feature refinements rather than altering the car's physical size. As such, the exterior and interior space remained consistent, while the 2018 model offered improved infotainment systems and minor suspension tuning to enhance the driving experience.

Compared to rivals like the BMW 5 Series, Audi A6, and Mercedes-Benz E-Class in their respective 2018 model years, the Acura RLX facelift is slightly longer at 5023 mm versus approximately 4935-4965 mm in competitors. Its width at 1890 mm is competitive, offering comparable cabin space. Although the RLX tends to have a slightly lower ground clearance and a moderately larger trunk space than some rivals, it balances luxury features with a reputation for reliability. Performance-wise, it may be less aggressive but offers a comfortable, refined ride typical of flagship Acura sedans.

While exact interior dimensions of the 2018 Acura RLX facelift are not as widely published, the overall exterior size indicates ample headroom, legroom, and shoulder space for both front and rear passengers, typical of a full-size sedan. The low floor height combined with wide cabin dimensions supports a comfortable seating posture. Additionally, the facelift added improved materials, updated infotainment interfaces including a dual-screen setup, and premium sound options enhancing overall passenger comfort and convenience.

The RLX facelift’s larger size and weight (1804-1987 kg or 3978-4380 lbs) mean the vehicle requires a balanced powertrain setup to maintain decent fuel efficiency. Its aerodynamic profile from a low height (1465 mm) helps mitigate drag, but the sedan’s weight and luxury amenities add to energy consumption. Overall, the RLX balances comfortable and smooth driving with moderate fuel economy typical in the full-size luxury category. Its size supports stable high-speed cruising and road presence but may be less nimble than smaller sedans or sportier competitors.

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