Compare the2025 Acura IntegraVS 2025 Kia K4

The Acura Integra 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 K4 doesn’t offer knee airbags.

The Integra’s lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. The K4 doesn’t offer a lane departure warning system.

The Integra has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the K4’s blind spot costs extra.

To help make backing out of a parking space safer, the Integra has standard Rear Cross Traffic Monitor, helping the driver avoid collisions. Only the K4 LXS/EX/GT-Line offers Rear Cross-Traffic Collision Warning.

The Integra A-Spec Technology/Type S offers optional AcuraLink, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn 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 K4 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the Integra and the K4 have standard driver and passenger frontal airbags, front and rear side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, driver alert monitors and available rear parking sensors.

The Acura Integra achieved a “Top Safety Pick” rating from the Insurance Institute for Highway Safety (IIHS) for the 2025 model year. This recognition was based on its impressive performance in the small overlap frontal crash test, updated moderate overlap front crash test, updated side impact crash test, headlight evaluations, and pedestrian crash prevention testing. The K4 has not yet been fully evaluated by the IIHS for 2025.

The Integra’s 5 year corrosion warranty has no mileage limitations, but the corrosion warranty on the K4 runs out after 100,000 miles.

From surveys of all its subscribers, Consumer Reports’ March 2025 Auto Issue reports that Acura vehicles are more reliable than Kia vehicles. Consumer Reports ranks Acura 4 places higher in reliability than Kia.

The Integra’s standard 1.5 turbo 4-cylinder produces 53 more horsepower (200 vs. 147) and 60 lbs.-ft. more torque (192 vs. 132) than the K4’s standard 2.0 DOHC 4-cylinder. The Integra’s 1.5 turbo 4-cylinder produces 10 more horsepower (200 vs. 190) than the K4 GT-Line Turbo’s standard 1.6 turbo 4-cylinder. The Integra Type S’ standard 2.0 turbo 4-cylinder produces 130 more horsepower (320 vs. 190) and 115 lbs.-ft. more torque (310 vs. 195) than the K4 GT-Line Turbo’s standard 1.6 turbo 4-cylinder.

The Integra has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The K4 doesn’t offer a cap-less fueling system.

The Integra offers a manual transmission for better acceleration, control and sportiness. The K4 doesn’t offer a manual transmission.

For better stopping power the Integra’s brake rotors are larger than those on the K4:

The Integra stops much shorter than the K4:

For better traction, the Integra has larger standard tires than the K4 (215/50R17 vs. 205/55R16). The Integra Type S’ tires are larger than the largest tires available on the K4 (265/30R19 vs. 235/40R18).

The Integra’s standard tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the K4 LX/LXS’ standard 55 series tires. The Integra Type S’ tires have a lower 30 series profile than the K4 GT-Line’s 40 series tires.

For better ride, handling and brake cooling the Integra has standard 17-inch wheels. Smaller 16-inch wheels are standard on the K4 LX/LXS. The Integra Type S’ 19-inch wheels are larger than the 18-inch wheels on the K4 GT-Line.

The Integra has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The K4 doesn’t offer vehicle monitored tire inflation.

For superior ride and handling, the Acura Integra has fully independent front and rear suspensions. An independent suspension allows the wheels to follow the road at the best angle for gripping the pavement, without compromising ride comfort. The K4 has a rear torsion beam axle, with a semi-independent rear suspension.

The Integra has standard front and rear stabilizer bars, which help keep the Integra flat and controlled during cornering. The K4 base model’s suspension doesn’t offer a rear stabilizer bar.

The Integra offers an optional driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The K4’s suspension doesn’t offer adjustable shock absorbers.

The Integra Type S handles at 1.02 G’s, while the K4 GT-Line Turbo pulls only .83 G’s of cornering force in a Car and Driver skidpad test.

The Integra Type S executes Motor Trend’s “Figure Eight” maneuver 2.1 seconds quicker than the K4 GT-Line Turbo (24.5 seconds @ .76 average G’s vs. 26.6 seconds @ .68 average G’s).

Because it has more passenger and cargo room, the EPA rates the Integra a Large car, while the K4 is rated a Mid-size.

The Integra has 1 inch more front hip room, .5 inches more front shoulder room and 1.3 inches more rear shoulder room than the K4.

The Integra’s standard folding rear seats are split to accommodate bulky cargo. The K4’s standard single piece folding rear seat is not as flexible; long cargo and a passenger can’t share the rear seat.

J.D. Power and Associates surveys of service recipients show that Acura service is better than Kia. J.D. Power ranks Acura 6th in service department satisfaction (above the industry average). With a 45% lower rating, Kia is ranked 27th.

The Integra’s standard easy entry system glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the K4, and is not available on all models.

The Integra A-Spec Technology/Type S has a standard heads-up display that projects speed and warning readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The K4 doesn’t offer a heads-up display.

The Integra’s front power windows open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The K4’s standard passenger windows don’t open or close automatically. The K4 EX/GT-Line’s rear windows don’t close automatically.

The Integra’s standard speed-sensitive wipers speed up when the vehicle does, so that the driver doesn’t have to continually adjust the speed of the wipers. The K4’s manually variable intermittent wipers have to be constantly adjusted. The Integra A-Spec Technology/Type S’ standard wipers adjust their speed and turn on and off automatically according to the amount of rainfall on the windshield.

Consumer Reports® recommends the Acura Integra, based on reliability, safety and performance.

The Type S was chosen as a Car and Driver’s “Top Ten” for 2024. The K4 has never been chosen by Car and Driver in their “10Best” issue.

A group of representative automotive journalists from North America selected the Integra as the 2023 North American Car of the Year. The K4 has never been chosen.