7: Renault Trezor
Renault has had a bad couple of years thanks to the negative press from the Nissan side. But the Trezor was a seemingly bright spot when it hit the auto show circle. Then the company left enthusiasts scratching their heads, as the car was promised for 2020 and never appeared. There has been no news about the Trezor since, and instead, Nissan has redesigned the Z sports car.
We have to wonder what would have gone down if the company had just redirected its efforts toward the Nissan brand instead. The Trezor had a lot of potentials and the brand is still well known in the F1 circuit. When the Trezor seemingly disappeared from the spotlight drivers were confused, to say the least. Renault is an automaker that has experienced quite a bit of bad press so the Trezor might come out later on.