Don't know if cheap is the right word for working with what you have. Fact is many of the DIY types realize that a vehicle doesn't need extreme 0-60 times and 100+ miles of range to be an effective practical vehicle.By what metric? They seem to be aiming for similar range as the LEAF, it won't hold any more passengers than the LEAF, and all reports say the LEAF is quiet, comfortable, has good build quality, and has reasonable pickup. The only thing the RAV4EV will have over the LEAF is 0-60 times, which is not what people buy a RAV4 for. Given a choice most people would probably drop a few seconds from the 0-60 time if they could pick up 10-20 miles of range anyway.
You seem obsessed with 0-60 times when that's not the main concern of the RAV4 target market. No one who's driven the old RAV4EV has complained about it's acceleration that I'm aware of, because they don't really care that much. I'm sure any newer version would beat that anyway with a lighter lithium pack. You have this false impression that only Tesla knows how to make an EV go fast. It's not about the motor or the inverter it's about sizing the proper battery pack. Remember, the Roadster gets blown away by an old Datsun with series DC motors. If Toyota were coming out with a sports car or high performance sedan then I can see "Powered By Tesla" making sense. For an electric soccer mom mobile, very similar to the LEAF, not so much.