Certified Benz & Beemer Compares 2008 BMW 1 SERIES VS 2008 Porsche Boxster Near Phoenix, AZ

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2008 Porsche Boxster

Safety Comparison

The 1 Series offers optional BMW Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to get driving directions, remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Boxster doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies.

Both the 1 Series and the Boxster have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, front seatbelt pretensioners, four wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

Warranty Comparison

The 1 Series’ corrosion warranty is 2 years longer than the Boxster’s (12 vs. 10 years).

BMW pays for scheduled maintenance on the 1 Series for 4 years and 50,000 miles. BMW will pay for oil changes, tire rotation, lubrication and any other scheduled maintenance. Porsche doesn’t pay scheduled maintenance for the Boxster.

There are over 76 percent more BMW dealers than there are Porsche dealers, which makes it much easier to get service under the 1 Series’ warranty.

Engine Comparison

The 135i’s standard 3.0 turbo 6 cyl. produces 5 more horsepower (300 vs. 295) and 49 lbs.-ft. more torque (300 vs. 251) than the Boxster S’ standard 3.4 DOHC 6 cyl.

For more instantaneous acceleration and better engine flexibility in any gear, the 1 Series’ engines produce their peak torque at lower RPM’s than the Boxster:


128i 3.0 DOHC 6 cyl.

2750 RPM

135i 3.0 turbo 6 cyl.

1400 RPM

Boxster 2.7 DOHC 6 cyl.

4600 RPM

Boxster S 3.4 DOHC 6 cyl.

4400 RPM

Brakes and Stopping Comparison

In an emergency stopping situation, many drivers don’t press the brakes with enough force to stop the vehicle in the shortest distance. The 1 Series has a standard brake assist system to detect emergency braking situations (by how hard and how quickly the brake pedal is pressed) and then automatically apply maximum braking immediately in order to help prevent a collision. The Boxster doesn’t offer a brake assist feature.

Tires and Wheels Comparison

The 135i’s 245/35R18 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) which provides a stiffer sidewall than the Boxster’s optional 40 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the 1 Series can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Boxster doesn’t offer run-flat tires.

Suspension and Handling Comparison

For a smoother ride and more stable handling, the 1 Series’ wheelbase is 9.6 inches longer than on the Boxster (104.7 inches vs. 95.1 inches).

The 1 Series’ front to rear weight distribution is more even (50.3% to 49.7%) than the Boxster’s (47% to 53%). This gives the 1 Series more stable handling and braking.

For better maneuverability, the 1 Series’ turning circle is 1.3 feet tighter than the Boxster’s (35.1 feet vs. 36.4 feet).

Passenger Space Comparison

The 1 Series has standard seating for 4 passengers; the Boxster can only carry 2.

The 1 Series Convertible has 30 cubic feet more passenger volume than the Boxster (78 vs. 48).

Ergonomics Comparison

If the front windows are left down on the 1 Series the driver can raise them using the key in the outside lock cylinder. On a hot day the driver can lower the windows from outside the vehicle using the key in the outside lock cylinder or the keyless remote. The driver of the Boxster can’t use the remote to operate the windows.

The 1 Series’ 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 Boxster’s standard manually variable intermittent wipers have to be constantly adjusted.

The 1 Series has a standard automatic headlight on/off feature. When the ignition is on, the headlights automatically turn on at dusk and off after dawn. The Boxster doesn’t offer automatic headlights.

To help drivers avoid possible obstacles, the 1 Series offers optional cornering lights to illuminate around corners when the turn signals are activated. The Boxster doesn’t offer cornering lights. The 1 Series also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The 1 Series’ standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The Boxster doesn’t offer dual zone air conditioning.

The 1 Series’ available GPS navigation system has a real-time traffic update feature that offers alternative routes to automatically bypass traffic problems. (Service available in a limited number of metro areas.) The Boxster’s available navigation system doesn’t offer real-time traffic updates.

With standard voice command, the 1 Series offers the driver hands free control of the navigation computer by simply speaking. The Boxster doesn’t offer a voice control system.

Wireless connectivity is optional on the 1 Series, connecting the driver and passenger’s cell phones to the vehicle systems. This allows them to use the vehicle’s stereo and hand controls to place calls safely and easily. Porsche doesn’t offer wireless connectivity on the Boxster.

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