I had a Nextbase but returned it due to a clicking noise on the recording every time we hit even slight bump. I then bought a TOGUARD Dash Cam with GPS that is mounted on an adhesive pad. I had to reverse the swivel part of the mount to get it to work on the near vertical windscreen of the Morgan. It cost only €60 and produces a good quality video. I decided to buy a second one but the model was discontinued. I then bought a Z-Edge which mounts on a suction mount in the Jag.
My experience with low cost, but carefully selected Chinese dashcams has been quite reasonable.