the escort srx / bel rx75 are basically the same system and do not include rear detection, as most custom v1 systems do (like the one i ordered). its def good. also, the laser shifter included in the srx is not quite as robust as the blinders normally paired with the v1 system. but my installer is not aware of any update for the spectre so if you live in dc, va, ontario, etc the v1 may not be worth it.

in about a month, i am getting my system installed. my biggest question so far is if i can get the v1 arrow light display mounted inside my factory e70 rear view mirror without installing new glass (which would likely remove the compass). also, no matter what custom system you install, im sure the dealer will tell you it voids the warranty if u ever need any electrical work. i'll try to post some pics once its done