2018 Hyundai Ioniq Plug-In Hybrid Review
Edmunds expert review
When most buyers think hybrid, Toyota's almighty Prius is generally the first car to pop into mind. But with most manufacturers offering a hybrid vehicle in their lineups, that's slowly changing. With the 2018 Ioniq, Hyundai is offering three variants of the same car: a traditional hybrid, an electric-only model, and the all-new 2018 Ioniq Plug-In Hybrid.
The Plug-In is just like the regular Ioniq Hybrid, but it has a bigger battery to allow for much greater electric-only operation — up to 29 miles of driving — and the ability to plug it in to recharge the battery. If you're looking for a vehicle that can give you some electric mobility but aren't ready to commit to a pure electric, the Ioniq Plug-In could work out well. It also boasts a large cargo area, an easy-to-use interior, and Hyundai's generous warranty coverage as other good reasons to consider this plug-in hybrid.
But there are a few downsides. The seats are unsupportive and the ride is disconnected with lots of body motion. Road noise may also be a problem, especially considering how quiet it can be in electric mode. The Plug-In features slightly less cargo volume than the standard Hybrid (23 cubic feet versus 26.5). And even with Sport mode engaged and your foot buried to the floor, the Ioniq accelerates tepidly. Overall, we think the Ioniq Plug-In is worth a look, but you'll still want to check out the Prius Prime as well as the Chevrolet Volt and the new Honda Clarity Plug-In.
What's new for 2018
Trim levels & features
The 2018 Hyundai Ioniq Plug-In Hybrid is a compact four-door hatchback that can seat five. It shares its basic hybrid powertrain and six-speed automatic transmission with the regular Ioniq Hybrid, but the Plug-In comes with a bigger, 8.9-kWh battery allowing it to go up to 29 miles in electric mode. The Plug-In is available in two trims: the standard but well-equipped Ioniq Plug-In Hybrid and the Ioniq Plug-In Hybrid Limited, which includes more luxury and technology features.
The Ioniq Plug-In uses a 1.6-liter four-cylinder engine combined with an electric motor to make a total of 139 horsepower. Standard feature highlights include 16-inch wheels, heated side mirrors, dual-zone automatic climate control, keyless entry with push-button starting, heated front seats, a 60/40-split folding rear seat, Bluetooth, a 7-inch touchscreen, Android Auto and Apple CarPlay connectivity, a USB port and satellite radio.
The Ioniq Plug-In Hybrid Limited adds LED headlights, a power-adjustable driver's seat with memory settings, leather seating surfaces, a bigger driver information display, and blind-spot monitoring with rear cross-traffic alert.
An available Ultimate package is available for Limited models. It includes turn-adaptive headlights, a sunroof, a larger 8-inch touchscreen display with Hyundai Blue Link connected services, a navigation system, LED interior lighting, adaptive cruise control, automatic emergency braking, lane keeping assist, rear parking sensors, a wireless phone charging pad, an auto-dimming rearview mirror, and an Infinity Premium eight-speaker audio system.
Noise & vibration7.5
Ease of use8.0
Getting in/getting out7.0
Child safety seat accommodation7.0
Audio & navigation8.0
Edmunds expert review process
This review was written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.
We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.