Compare the2025 BMW 3 Series SedanVS 2025 Genesis G70

The 3 Series Sedan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The G70 doesn’t offer pre-crash pretensioners.

The BMW 3 Series Sedan has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The G70 doesn’t offer a front passenger side knee airbag.

The 3 Series Sedan has a standard PostCrash iBrake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The G70 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

Over 200 people are killed each year when backed over by motor vehicles. The 3 Series Sedan offers an optional Active Park Distance Control that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The G70 doesn’t offer automatic braking for stationary objects directly to the rear.

Both the 3 Series Sedan and the G70 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, driver alert monitors, available all wheel drive, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

The 3 Series Sedan’s corrosion warranty is 5 years longer than the G70’s (12 vs. 7 years).

There are over 44 percent more BMW dealers than there are Genesis dealers, which makes it easier should you ever need service under the 3 Series Sedan’s warranty.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the 3 Series Sedan’s reliability 14 points higher than the G70.

J.D. Power and Associates rated the 3 Series Sedan third among compact premium cars in their 2024 Initial Quality Study. The G70 isn’t in the top three.

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Genesis With 10 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks BMW higher than Genesis.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that BMW vehicles are more reliable than Genesis vehicles. Consumer Reports ranks BMW 9 places higher in reliability than Genesis.

The M340i’s standard 3.0 turbo 6-cylinder hybrid produces 21 more horsepower (386 vs. 365) and 22 lbs.-ft. more torque (398 vs. 376) than the G70 3.3T’s standard 3.3 turbo V6.

As tested in Road and Track the M340i 3.0 turbo 6-cylinder hybrid is faster than the G70 3.3T 3.3 turbo V6:

On the EPA test cycle the 3 Series Sedan gets better mileage than the G70:

Regenerative brakes improve the 3 Series Sedan’s fuel efficiency by converting inertia back into energy instead of wasting it. The G70 doesn’t offer a regenerative braking system.

Regardless of its engine, the 3 Series Sedan’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. If the conditions warrant or the driver wishes, the system can be manually disabled at any time for the duration of a trip. Genesis only offers an automatic engine start/stop system on the G70 2.5T.

To lower fuel costs and make buying fuel easier, the BMW 3 Series Sedan uses regular unleaded gasoline (premium recommended for maximum performance). The G70 2.5T requires premium, which can cost on average about 84.9 cents more per gallon.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW 3 Series Sedan higher (6 to 7 out of 10) than the Genesis G70 (4 to 5). This means the 3 Series Sedan produces up to 13.2 pounds less smog-producing pollutants than the G70 every 15,000 miles.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the 3 Series Sedan can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The G70 doesn’t offer run-flat tires.

The 3 Series Sedan has standard front and rear gas-charged shocks for better control over choppy roads. The G70’s suspension doesn’t offer rear gas-charged shocks.

The 330i handles at .95 G’s, while the G70 Sport Advanced pulls only .89 G’s of cornering force in a Motor Trend skidpad test.

The M340i executes Motor Trend’s “Figure Eight” maneuver 1 seconds quicker than the G70 Sport Advanced (25 seconds @ .77 average G’s vs. 26 seconds @ .68 average G’s).

The design of the BMW 3 Series Sedan amounts to more than styling. The 3 Series Sedan has an aerodynamic coefficient of drag of .26 Cd. That is lower than the G70 (.28) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the 3 Series Sedan get better fuel mileage.

As tested by Car and Driver while under full throttle, the interior of the 330i is quieter than the G70 (74 vs. 77 dB).

The 3 Series Sedan has a much larger trunk than the G70 (16.9 vs. 11.7 cubic feet).

Pulling a handle automatically lowers the 3 Series Sedan’s rear seats, to make changing between passengers and cargo easier. The G70 doesn’t offer automatic folding seats.

With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the 3 Series offers cargo security. The G70’s non-lockable folding seat and non-lockable remote release defeat cargo security.

The 3 Series Sedan’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 G70’s standard manually variable intermittent wipers have to be constantly adjusted.

The BMW 3 Series Sedan has power folding mirrors that offer unparalleled convenience while maneuvering in tight places or parked. With the mirrors folded it’s easier to walk past and help prevent parking damage. The mirrors can be quickly unfolded when the driver is ready to leave. Power folding mirrors are only offered on the G70 Advanced/Sport Prestige.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the BMW 3 Series has a standard wireless phone charging system (Qi) in the center console. Only the G70 Advanced/Sport Prestige offers wireless charging.

The 3 Series Sedan’s optional Parking Assistant Plus can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The G70 doesn’t offer an automated parking system.

The 3 Series Sedan will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the 3 Series Sedan will retain 51.33% to 52.95% of its original price after five years, while the G70 only retains 49.24% to 51.02%.

Consumer Reports® recommends the BMW 3 Series Sedan, based on reliability, safety and performance. The Genesis G70 isn't recommended.

Car and Driver performed a comparison test in its February 2020 issue and they ranked the BMW 330i first. They ranked the Genesis G70 third.

J.D. Power and Associates rated the 3 Series Sedan third among compact premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The G70 isn’t in the top three.

The BMW 3 Series outsold the Genesis G70 by almost three to one during 2023.