Compare the2022 BMW i4VS 2021 Karma Revero

Safety
Warranty
Engine
Fuel Economy and Range
Environmental Friendliness
Transmission
Tires and Wheels
Suspension and Handling
Chassis
Passenger Space
Cargo Capacity
Payload
Ergonomics

Safety

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The i4’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Revero doesn’t offer pre-crash pretensioners.

The i4 has standard City Collision Mitigation, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The Revero has a collision warning system without the crash-mitigating brake feature that could reduce stopping distances.

The i4 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 Revero 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 i4 offers optional Active Park Distance Control that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Revero doesn’t offer backup collision prevention brakes.

The i4 M50 has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Revero doesn’t offer all-wheel drive.

The i4’s 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 Revero doesn’t offer a driver alert monitor.

The i4 has standard BMW Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to 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 Revero 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 i4 and the Revero 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, collision warning systems, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.

Warranty

BMW pays for scheduled maintenance on the i4 for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Karma doesn’t pay scheduled maintenance for the Revero.

There are almost 14 times as many BMW dealers as there are Karma dealers, which makes it much easier should you ever need service under the i4’s warranty.

Engine

The i4 M50’s standard electric motors produce 36 lbs.-ft. more torque (586 vs. 550) than the Revero’s 1.5 turbo 3-cylinder hybrid.

Fuel Economy and Range

On the EPA test cycle the i4 gets better mileage than the Revero running on electricity:

			MPGe
i4
	RWD	18" Wheels Electric Motor	109 city/108 hwy
		19" Wheels Electric Motor	100 city/98 hwy
	AWD	19" Wheels Electric Motors	94 city/98 hwy
		20" Wheels Electric Motors	79 city/80 hwy
Revero
	RWD	GT Electric Motors	71 city/69 hwy
		22" Wheels Electric Motors	63 city/61 hwy

The i4’s maximum EPA estimated driving range is 227 to 301 miles on a full charge (depending on model). The Karma has to start its internal combustion engine after only 54 to 61 miles (depending on model)

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW i4 higher (10 out of 10) than the Karma Revero (7). This means the i4 produces up to 11.8 pounds less smog-producing pollutants than the Revero every 15,000 miles.

Transmission

The i4 M50’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The Revero doesn’t offer launch control.

Tires and Wheels

The i4 M50’s optional 285/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the Revero’s optional 35 series tires.

Suspension and Handling

The rear suspension of the i4 uses air springs for a smoother, controlled ride than the Revero, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The i4 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 Revero’s suspension doesn’t offer adjustable shock absorbers.

Chassis

The BMW i4 may be more efficient, handle and accelerate better because it weighs about 50 to 400 pounds less than the Karma Revero.

The i4 is 10.9 inches shorter than the Revero, making the i4 easier to handle, maneuver and park in tight spaces.

The front grille of the i4 uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The Revero doesn’t offer active grille shutters.

Passenger Space

The i4 has standard seating for 5 passengers; the Revero can only carry 4.

Cargo Capacity

To allow full utilization of available cargo room, the i4’s hatch uses gas strut supported hinges that don’t intrude into the cargo area. Its intrusive beam hinge reduces the Revero’s useful trunk space.

To make loading groceries and cargo easier when your hands are full, the i4’s liftgate can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The Revero doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Payload

The i4 has a much higher standard payload capacity than the Revero (933 vs. 700 lbs.).

Ergonomics

The i4 has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Revero doesn’t offer a remote starting system.

The i4 offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Revero doesn’t offer a heads-up display.

The i4’s standard power window controls are mounted on the armrest for easy access. The Revero’s available power window controls are spread out on the center console where they can’t be seen without the driver completely removing his eyes from the road.

If the windows are left open on the i4 the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Revero can only operate the windows from inside the vehicle, with the ignition on.

While driving with high beams on, sensitive light sensors standard on the i4 detect other vehicles which could be blinded and automatically switch to low beams. The Revero doesn’t offer automatic dimming high beams.

When the i4 is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Revero’s mirror doesn’t automatically adjust for backing.

The i4’s standard rear and side view mirrors have an automatic dimming feature. These mirrors can be set to automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Revero has an automatic rear view mirror, but its side mirrors don’t dim.

To keep a safe, consistent following distance, the i4 offers an optional Active Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The Revero doesn’t offer an adaptive cruise control.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the BMW i4 offers an optional wireless phone charging system (Qi) in the center console. The Revero doesn’t offer wireless personal charging.

The i4’s optional Automatic Parking Assistant can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Revero doesn’t offer an automated parking system.