Vincentric is a Detroit based, vehicle ownership costs data provider. Its customers include AAA, Yahoo Autos and hundreds of other vehicle sites. They are pretty much the exclusive data provider in determining vehicle ownership costs and therefore has tremendous reach in influencing the buying decision of tens of millions of consumers. This is fine and all, however, the problem is that it appears that they are inflating the costs of EV maintenance and in some scenarios, they estimate higher maintenance costs for an EV then their gas vehicle equivalent.
To give you an example, the Canadian version of AAA (CAA) runs an online vehicle costs calculator that is powered by Vincentric. Here is what they state are the costs for maintenance (in Canadian dollars) for the following EV vehicles for 30,000km:
2016 Nissan leaf: $1,148.41
2017 Nissan leaf: $1,214.81
2018 Nissan leaf: $1,229.26
2018 Kia Soul (gas): $1,589.88
2018 Kia Soul (EV): $1,188.32
2018 Ford Focus EV: $1,336.83
2018 Ford Focus (gas): $1,297.01
2017 Ford Focus (EV): $1,319.50
2017 Ford Focus (gas): $1292.43
As you can see, aside from the Kia Soul EV having lower maintenance costs than its gas counterpart, Vincentric shows that EV maintenance costs are either comparable in costs or cost more than their gas counterparts. I contacted Vincentric to find out if they average in battery replacement into their calculations which perhaps would explain high maintenance costs. They responded and said they do not.
Personal experience of owning an EV and scientific papers conclude that EVs cost much less in maintenance than a gas vehicle. It doesn't make sense that Vincentric would show that a Ford Focus EV costs more in maintenance than a gas version of the Ford Focus.
Here are some studies below comparing EV and ICEV maintenance costs. All of them show lower costs of maintenance:
Cost analysis of Plug-in Hybrid Electric Vehicles including Maintenance & Repair Costs and Resale Values
18.82% (including tires and battery replacement)
49% reduction (including tires, not including battery replacement)
Total Cost of Ownership Model for Current Plug-in Electric Vehicles
78% reduction (excluding tires, No battery replacement)
An Analysis of the Retail and Lifecycle Cost of Battery-Powered Electric Vehicles
28% reduction (includes tires)
German automotive Institute
35% less (No battery pack. Includes tires)