2019 BMW 4 Series Gran Coupe vs. 2018 Lexus GS Series

Detailed Review, Specifications & Comparison

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Safety

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The 4 Series Gran Coupe offers an optional Side and Top View Cameras to allow the driver to see objects all around the vehicle on a screen. The GS Series only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

Both the 4 Series Gran Coupe and the GS Series have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, 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 blind spot warning systems.

Warranty

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The 4 Series Gran Coupe’s corrosion warranty is 6 years longer than the GS Series’ (12 vs. 6 years).

BMW pays for scheduled maintenance on the 4 Series Gran Coupe for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Lexus only pays for the first scheduled maintenance visit on the GS Series.

There are over 43 percent more BMW dealers than there are Lexus dealers, which makes it easier should you ever need service under the 4 Series Gran Coupe’s warranty.

Reliability

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The camshafts in the 4 Series Gran Coupe’s engine are driven by a hardened steel chain, with no maintenance needs. A rubber belt that needs periodic replacement drives the GS 300’s camshafts. If the GS Series’ cam drive belt breaks the engine could be severely damaged when the pistons hit the opened valves.

The battery on the 4 Series Gran Coupe is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the 4 Series Gran Coupe’s battery 20 to 30 degrees cooler, its life is increased by years. The GS Series’ battery is in the hot engine compartment.

J.D. Power and Associates’ 2017 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Lexus vehicles. J.D. Power ranks BMW 6th in initial quality, above the industry average. With 10 more problems per 100 vehicles, Lexus is ranked 15th, below the industry average.

Engine

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The 4 Series Gran Coupe has more powerful engines than the GS Series:

Horsepower

Torque

430i Gran Coupe 2.0 turbo 4 cyl.

248 HP

258 lbs.-ft.

440i Gran Coupe 3.0 turbo 6 cyl.

322 HP

332 lbs.-ft.

GS 300 2.0 turbo 4 cyl.

241 HP

258 lbs.-ft.

GS 350 3.5 DOHC V6

311 HP

280 lbs.-ft.

GS 450h 3.5 DOHC V6 hybrid

338 HP

n/a

Fuel Economy and Range

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/06/03

On the EPA test cycle the 4 Series Gran Coupe gets better fuel mileage than the GS Series:

4 Series

GS Series

RWD

430i/Auto

24 city/34 hwy

22 city/32 hwy

300/Auto

n/a

21 city/30 hwy

300/Auto F Sport

440i/Auto

21 city/32 hwy

20 city/28 hwy

350/Auto

n/a

19 city/27 hwy

350/Auto F Sport

AWD

430i/Auto

23 city/33 hwy

n/a

440i/Auto

21 city/31 hwy

19 city/26 hwy

350/Auto

Regardless of its engine, regenerative brakes improve the 4 Series Gran Coupe’s fuel efficiency by converting inertia back into energy instead of wasting it. Lexus only offers a regenerative brake system on the GS Series Hybrid.

Regardless of its engine, the 4 Series Gran Coupe’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) Lexus only offers an automatic engine start/stop system on the GS Series Hybrid.

Brakes and Stopping

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The 4 Series Gran Coupe stops much shorter than the GS Series:

4 Series

GS Series

70 to 0 MPH

162 feet

174 feet

Car and Driver

Tires and Wheels

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The 4 Series Gran Coupe’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the GS 300’s standard 50 series tires.

For better ride, handling and brake cooling the 4 Series Gran Coupe has standard 18-inch wheels. Smaller 17-inch wheels are standard on the GS 300.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the 4 Series Gran Coupe can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The GS Series doesn’t offer run-flat tires.

Suspension and Handling

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The 430i Gran Coupe handles at .89 G’s, while the GS 350 pulls only .88 G’s of cornering force in a Car and Driver skidpad test.

Chassis

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The 4 Series Gran Coupe is 9.4 inches shorter than the GS Series, making the 4 Series Gran Coupe easier to handle, maneuver and park in tight spaces.

As tested by Car and Driver, the interior of the 430i Gran Coupe xDrive is quieter than the GS 350:

4 Series

GS Series

At idle

40 dB

40 dB

Full-Throttle

73 dB

79 dB

Cargo Capacity

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The 4 Series Gran Coupe’s standard rear seats fold to accommodate long and bulky cargo. The GS Series doesn’t offer folding rear seats, only a ski pass-through.

To make loading groceries and cargo easier when your hands are full, the 4 Series Gran Coupe’s liftgate can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The GS Series doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Servicing Ease

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The 4 Series Gran Coupe has a maintenance free battery for long life without checking the battery’s water level. The GS Series doesn’t have a maintenance free battery, so the water level in the battery’s cells must be checked often to prevent damage.

A Condition-Based Service Display is standard on the 4 Series Gran Coupe to save the owner time and money by calculating maintenance intervals for oil changes, spark plug replacement and brake pad replacement, vehicle inspection based on actual driving conditions. This takes the guesswork out of keeping your vehicle in top condition and helps it last longer. Lexus doesn’t offer a maintenance reminder on the GS Series.

Ergonomics

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/06/03

The 4 Series Gran Coupe’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 GS Series’ standard manually variable intermittent wipers have to be constantly adjusted.

The 4 Series Gran Coupe’s optional Parking Assistant can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The GS Series doesn’t offer an automated parking system.

Model Availability

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The BMW 4 Series comes in coupe, convertible and four door hatchback bodystyles; the Lexus GS Series isn’t available as a coupe or convertible.

Economic Advantages

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Insurance will cost less for the 4 Series Gran Coupe owner. The Complete Car Cost Guide estimates that insurance for the 4 Series Gran Coupe will cost $2285 less than the GS Series over a five-year period.

The 4 Series Gran Coupe will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the 4 Series Gran Coupe will retain 44.99% to 47.5% of its original price after five years, while the GS Series only retains 36.41% to 41.84%.

According to The Car Book by Jack Gillis, the 4 Series Gran Coupe is less expensive to operate than the GS Series because typical repairs cost much less on the 4 Series Gran Coupe than the GS Series, including $169 less for a starter, $503 less for fuel injection, $738 less for a timing belt/chain and $536 less for a power steering pump.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the BMW 4 Series Gran Coupe will be $8330 to $21636 less than for the Lexus GS Series.

Recommendations

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/06/03

J.D. Power and Associates rated the 4 Series Gran Coupe third among compact premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The GS Series isn’t in the top three in its category.

The 4 Series was chosen as one of Car and Driver’s “Top Ten” in 2014. The GS Series has never been a Car and Driver “Top Ten” pick.

The 4 Series was chosen as one of Automobile Magazine’s “All Stars” in 2014. The GS Series has never been an “All Star.”

The BMW 4 Series outsold the Lexus GS Series by over five to one during 2017.

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