Certified Benz & Beemer Compares 2014 BMW 7 SERIES VS 2014 Lexus LS Near Phoenix, AZ

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2014 Lexus LS

Safety Comparison

An active infrared night vision system optional on the 7 Series helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then projects the image on the windshield, near the driver’s line of sight. The LS Series doesn’t offer a night vision system.

The 7 Series offers an optional Side and Top View Cameras to allow the driver to see objects all around the vehicle on a screen. The LS 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.

The 7 Series’ driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The LS Series doesn’t offer a driver alert monitor.

Compared to metal, the 7 Series’ plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Lexus LS Series has a metal gas tank.

Both the 7 Series and the LS 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 and electronic stability systems to prevent skidding.

Warranty Comparison

The 7 Series’ corrosion warranty is 6 years longer than the LS Series’ (12 vs. 6 years).

BMW pays for scheduled maintenance on the 7 Series for 3 years and 40,000 miles longer than Lexus pays for maintenance for the LS Series (4/50,000 vs. 1/10,000).

There are over 77 percent more BMW dealers than there are Lexus dealers, which makes it much easier should you ever need service under the 7 Series’ warranty.

Engine Comparison

The 7 Series has more powerful engines than the LS Series:



ActiveHybrid 7 3.0 turbo 6 cyl.

350 HP

360 lbs.-ft.

750i 4.4 turbo V8

445 HP

480 lbs.-ft.

760Li 6.0 turbo V12

535 HP

550 lbs.-ft.

Alpina B7 4.4 turbo V8

540 HP

538 lbs.-ft.

LS 460 AWD 4.6 DOHC V8

360 HP

347 lbs.-ft.

LS 460 4.6 DOHC V8

386 HP

367 lbs.-ft.

LS 600h L 5.0 DOHC V8 hybrid

438 HP


As tested in Car and Driver the Alpina B7 is faster than the Lexus LS Series:

7 Series

LS 460

LS 600h L

Zero to 60 MPH

3.8 sec

6.2 sec

5.4 sec

Zero to 100 MPH

9 sec

14.8 sec

12.4 sec

5 to 60 MPH Rolling Start

4.9 sec

6.4 sec

5.7 sec

Quarter Mile

12.2 sec

14.6 sec

13.8 sec

Speed in 1/4 Mile

115 MPH

99 MPH

106 MPH

Top Speed

188 MPH

130 MPH

130 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the ActiveHybrid 7 gets better fuel mileage than the LS 600h L (22 city/30 hwy vs. 19 city/23 hwy).

On the EPA test cycle the 7 Series gets better fuel mileage than the LS 460:

7 Series

LS Series



19 city/29 hwy



17 city/25 hwy

16 city/24 hwy

LS 460

Alpina B7/Auto

16 city/25 hwy




19 city/28 hwy



16 city/24 hwy

16 city/23 hwy

LS 460

Alpina B7/Auto

16 city/24 hwy


Regardless of its engine, regenerative brakes improve the 7 Series’ fuel efficiency by converting inertia back into energy instead of wasting it. Lexus only offers a regenerative brake system on the LS Series Hybrid.

Brakes and Stopping Comparison

For better stopping power the 7 Series’ standard brake rotors are larger than those on the LS Series:

7 Series

LS Series

Front Rotors

13.7 inches

13.1 inches

Rear Rotors

13.6 inches

12.3 inches

The 7 Series stops much shorter than the LS Series:

7 Series

LS Series

80 to 0 MPH

207 feet

251 feet

Road & Track

70 to 0 MPH

160 feet

209 feet

Car and Driver

60 to 0 MPH

104 feet

135 feet

Motor Trend

Tires and Wheels Comparison

For better traction, the 7 Series has larger standard tires than the LS Series (245/50R18 vs. 235/50R18).

The Alpina B7’s 245/35R21 front and 285/30R21 rear tires provide better handling because they have a lower 35 series front and 30 series rear profile (height to width ratio) that provides a stiffer sidewall than the LS Series’ optional 45 series tires.

For better ride, handling and brake cooling the Alpina B7 has standard 21-inch wheels. The LS Series’ largest wheels are only 19-inches.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the 7 Series 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.

Suspension and Handling Comparison

The 7 Series has standard front and rear gas-charged shocks for better control over choppy roads. The LS Series’ suspension doesn’t offer gas-charged shocks.

The 7 Series offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The LS Series doesn’t offer an active sway bar system.

The 7 Series SWB offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Lexus doesn’t offer an active suspension on the LS Series.

For a smoother ride and more stable handling, the 7 Series’ wheelbase is longer than on the LS Series:

7 Series

LS Series

SWB Sedan

120.9 inches

116.9 inches

LWB Sedan

126.4 inches

121.7 inches

For better handling and stability, the track (width between the wheels) on the 7 Series is 1.3 inches wider in the rear than the average track on the LS Series.

The Alpina B7 LWB xDrive handles at .93 G’s, while the LS 600h L AWD pulls only .75 G’s of cornering force in a Car and Driver skidpad test.

The 750Li goes through Road & Track’s slalom 8.8 MPH faster than the LS 460 (68.7 vs. 59.9 MPH).

The 750Li performs Car and Driver’s emergency lane change maneuver 13.4 MPH faster than the LS 460 L (68.3 vs. 54.9 MPH).

The 740i executes Motor Trend’s “Figure Eight” maneuver 1.7 seconds quicker than the LS 600h L AWD (25.8 seconds @ .73 average G’s vs. 27.5 seconds @ .65 average G’s).

Passenger Space Comparison

The 7 Series SWB has 2.6 inches more front headroom, .7 inches more front shoulder room, .6 inches more rear headroom, 3.1 inches more rear legroom and .5 inches more rear shoulder room than the LS Series.

Cargo Capacity Comparison

To make loading groceries and cargo easier when your hands are full, the 7 Series’ trunk can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The LS Series doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Ergonomics Comparison

The 7 Series offers an optional heads-up display which projects speed and other key instrumentation readouts onto the windshield, allowing drivers to view information without diverting their eyes from the road. The LS Series doesn’t offer a heads-up display.

The power windows standard on both the 7 Series and the LS Series have locks to prevent small children from operating them. When the lock on the 7 Series is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The LS Series prevents the driver from operating the other windows just as it does the other passengers.

Heated windshield washer nozzles are standard on the 7 Series to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The LS Series doesn’t offer heated windshield washer nozzles.

The 7 Series’ power mirror controls are mounted on the armrest for easy access. The LS Series’ power mirror controls are on the dash, hidden behind the steering wheel, where they are awkward to manipulate.

The 7 Series’ 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 LS Series doesn’t offer an automated parking system.

Recommendations Comparison

Both the BMW 7 Series and Lexus LS Series won an award in Kiplinger’s 2013 car issue.

Road & Track performed a comparison test in its October 2010 issue and the BMW 750i won out over the Lexus LS 460 F Sport.

The BMW 7 Series outsold the Lexus LS Series by 5% during the 2013 model year.

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