Although there are some similarities, these two are different in most aspects such as model year, body structure, powertrain, starting price, horsepower, fuel economy, market segment, and ground shadow size. First of all, there is a notable difference in the starting price of the 2018 Honda Clarity Plug-in Hybrid, which is $25,350 less than the base MSRP of the 2022 Volvo C40, which is four model years newer. Also, a major difference is in the body structure and in the size of the vehicles. The 2018 Clarity Plug-in Hybrid is a Sedan and is slightly larger than the 2022 C40, which is an SUV. In addition, although the C40 has a more powerful engine than the Clarity Plug-in Hybrid, it gets 45 more mpg. Among similarities is the maximum occupancy.