Compare the2018 Infiniti Q50VS 2018 Lexus LS Series

The Q50 (except )’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The LS Series doesn’t offer pre-crash pretensioners.

Over 200 people are killed each year when backed over by motor vehicles. The Q50 (except Pure) offers optional Back-up Collision Intervention which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The LS Series doesn’t offer backup collision prevention brakes.

Both the Q50 and the LS Series have standard driver and passenger frontal airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available all-wheel drive, crash mitigating brakes, lane departure warning systems and around view monitors.

The Q50 comes with a full 4-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The LS Series’ 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

The Q50’s corrosion warranty is 1 year longer than the LS Series’ (7 vs. 6 years).

As tested in Motor Trend the Q50 Hybrid 3.5 DOHC V6 hybrid is faster than the LS 500 3.4 turbo V6:

As tested in Car and Driver the Q50 Red Sport 400 3.0 turbo V6 is faster than the LS 500 3.4 turbo V6:

On the EPA test cycle the Q50 Hybrid gets better fuel mileage than the LS Series:

On the EPA test cycle the Q50 gets better fuel mileage than the LS Series:

The Q50 stops much shorter than the LS Series:

The Q50 Red Sport 400’s 245/40R19 front and 265/35R19 rear tires provide better handling because they have a lower 40 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the LS Series F Sport’s 45 series front and 40 series rear tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the Q50 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The LS Series doesn’t offer run-flat tires.

The Q50’s optional drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The LS Series doesn’t offer drift compensation steering.

The Q50 handles at .95 G’s, while the LS 500 pulls only .88 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the Q50’s turning circle is .7 feet tighter than the LS Series’ (36.7 feet vs. 37.4 feet). The Q50 AWD’s turning circle is 2 feet tighter than the LS Series AWD’s (37.4 feet vs. 39.4 feet).

The Infiniti Q50 may be more efficient, handle and accelerate better because it weighs about 900 to 1050 pounds less than the Lexus LS Series.

The Q50 is 1 foot, 4.5 inches shorter than the LS Series, making the Q50 easier to handle, maneuver and park in tight spaces.

The Q50 Hybrid uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The LS Series doesn’t offer active noise cancellation.

The Q50 has 2.1 cubic feet more passenger volume than the LS Series (101.5 vs. 99.4).

The Q50 has 2.9 inches more front headroom, 3.5 inches more front legroom and .2 inches more rear headroom than the LS Series.

J.D. Power and Associates surveys of service recipients show that Infiniti service is better than Lexus. J.D. Power ranks Infiniti first in service department satisfaction. With a 5% lower rating, Lexus is ranked third.

The Q50’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The LS Series’

The Infiniti Q50 outsold the Lexus LS Series by almost 10 to one during 2017.