I've also been looking at gsp trackers for my cars. I'd like one with an internal battery preferably if anyone knows of one.
Another thing I've been looking at is hidden cameras front and rear and a drivers side external microphone with a constant recording setup that overwrites old data as it records. Why you may ask? Well chch police have been on the abusive psychopath side of late and I'd really like to get it on camera so something is done about it. Last ticket I got I was 6 days out on my wof and the policeboy told me to "shut the fuck up" after I asked would he consider giving me compliance as the car had been off the road for 4 months(i had the car wof 2 days later, clean sheet). He ended up calming down a bit and gave me compliance how ever this is just another in the stream of bs I've had to deal with driving a vintage car. One time I got a seat belt fine while wearing my seatbelt, true story. The Christchurch traffic police are off the rails.