With its ToyotaCare no-cost maintenance plan as a standard feature, the 2018 Prius Two has a distinct advantage over the 2018 Ioniq SEL when it comes to maintenance. ToyotaCare includes 24-hour roadside assistance for three years included and a no-cost maintenance plan with the purchase or lease of every new Toyota for two years or 25,000 miles. Hyundai’s best offer is a pre-paid scheduled maintenance plan at an additional cost.
When you look into the cost and value of modern hybrid vehicles, the benefits are numerous—especially when you consider savings on fuel. Both the Prius Two and the Ioniq SEL offer competitive pricing:
The base model 2018 Prius Two has a starting MSRP of $24,685.
The base model 2018 Ioniq Hybrid SEL has a starting MSRP of $24,200.
Both hybrid cars include many tech features such as an eco-driving monitor and integrated backup camera. When considering the starting MSRP, the addition of Toyota Safety Sense^™ P (TSS-P) with the 2018 Prius gives it a leg up on the competitor.
Hyundai does offer upgrades at an added cost to the Ioniq as part of the Tech Package for the SEL: Smart Cruise Control and a Lane Keep Assist System—both of which are equivalent to features that come standard on the Prius with Toyota Safety Sense^™ P (TSS-P). It is worth noting that these are only two of four features that are a part of Toyota Safety Sense^™ P (TSS-P).
Adding this Tech Package to the Hyundai Ioniq SEL costs an extra $1,000. This means that a 2018 Hyundai Ioniq SEL with just two of the four TSS-P comparable features has a higher MSRP ($25,200) than the starting MSRP of the 2018 Toyota Prius Two.

When considering the safety of the 2018 Toyota Prius vs. 2018 Hyundai Ioniq, it is important to note that the Prius Two has an integrated backup camera and Hill Start Assist Control (HAC) —two features that the Ioniq SEL does not have. Additionally, The Prius Two has a 5-Star NHTSA Overall Safety Rating, and, as of winter 2018-19, the 2018 Ioniq’s NHTSA safety ratings were not available to compare.
Toyota also offers the standard Toyota Safety Sense^™ P (TSS-P) active safety feature package. Advanced active safety features in this suite include Pre-collision System with Pedestrian Detection (PCS w/PD), Lane Departure Alert with Steering Assist (LDA w/SA), Automatic High Beams (AHB), and Full-Speed Dynamic Radar Cruise Control (DRCC).
With its top safety rating plus modern high-tech features, the Prius Two exhibits intelligent design features and accessible technology.
Available features on the Ioniq SEL include only two of the four TSS-P comparable features, and at a cost of $1,000 for the upgrade. Two of the Prius' standard active safety features are not offered on the 2018 Ioniq SEL, including Blind Spot Detection (BSD) with Rear Cross-traffic Alert.
The 2018 Prius Two offers a level of safety and security that is difficult for competitors to surpass. With a high safety rating and a number of standard active safety features, the 2018 Prius Two leads when it comes to a safety comparison.

For eco-minded drivers who want to save money on fuel and lower their impact on the environment, hybrid vehicles are the natural choice.
Let’s compare the fuel economy of the Prius and the Ioniq:
The 2018 Prius Two 1.8L 4-cylinder has an EPA-estimated fuel economy of 54 MPG city and 50 MPG highway for an overall EPA-estimated combined fuel economy of 52.
The 2018 Ioniq Hybrid SEL 1.6L I4 has an EPA-estimated 55 MPG city and 54 MPG highway for an overall EPA-estimated combined fuel economy of 55.
When compared, the Prius and the Ioniq have very similar performance with the Ioniq having a very slight advantage of MPG. That being said, the Prius comes backed with almost two decades of proven hybrid drivetrain lineage.
Thanks to its full-color, Multi-Information Display (MID) eco drive monitor, the 2018 Prius Two easily tracks your fuel usage. The 2018 Hyundai Ioniq SEL features a similar eco drive monitor system in behind its steering column.
The Prius and Ioniq are neck-and-neck when it comes to fuel economy—plus the added intuitive fuel tracking and reliability of the Prius hybrid drivetrain make fuel economy a tight competition.

Hybrid vehicles such as the Prius Two and the Ioniq SEL are engineered with efficiency in mind, rather than power. That being said, it is important to examine the differences in power between the two cars. Below we will examine the key differences in 2018 Prius vs. Ioniq performance, engine specs, and acceleration.
When looking at horsepower, the Toyota Prius Two offers an estimated 121 net horsepower. The Hyundai Ioniq SEL offers an estimated 139 combined system horsepower.
Due to the differences in the cars' respective hybrid batteries, designs and charge levels, it is difficult to compare the exact engine performances against one another.
When comparing directly, the Ioniq SEL has slightly better net horsepower performance vs. the Prius Two. Yet, it is important to also consider the years of hybrid engineering experience that back the Prius.

In our head to head comparison of the 2018 Prius Two vs. the 2018 Ioniq SEL, the Prius brings considerable accessibility and practicality to the hybrid market worldwide.
The Prius is considered by some to be the first globally successful hybrid vehicle that helped create the demand for a hybrid car market—Prius owners can take comfort in the knowledge that Prius is backed by nearly two decades of hybrid engineering experience.
With standard features such as Toyota Safety Sense^™ P (TSS-P) and ToyotaCare, the 2018 Toyota Prius Two is an exceptional choice in hybrid technology that offers you excellent value.
The 2018 Hyundai Ioniq SEL's commendable fuel economy make it a strong contender when compared with the 2018 Toyota Prius Two.