After an evening trawling the web and looking at several forums, my longterm goal will be to get a DOD LS300W Super High Definition Car DVR but they are approx £160 from the UK supplier https://dod-tech.co.uk

But in the short term just to try things out, I’ve gone for something cheaper 

A lot cheaper, £29  it’s reported to be a fake but what the hell, I’m gonna give it a go a

F900LHD VG11