I thought hard about it but I’ve noticed that the Prius’ especially speed up and slow down on the highway and I noticed they are really slow off stop lights. My husband thinks it’s the drivers, but it’s every Prius I’ve ever seen. I’ll set cruise control and inevitable I’ll go around a Prius and then they are going around me over and over during a 45 minute commute. I drive on a 2 lane 55 mile per hour highway with stop lights and if you don’t get on it on dry roads when the light changes you can leave drivers 6 cars back sitting through two lights which is so rude. But I will keep watching as newer models from other manufacturers come out as I think it’s an excellent idea to own such a vehicle.