I have the concept 300 was gonna get 600 but WOW is that pricy. Any way BlackJax is way overrated. My brother has them in the mini and i cannot see the point as the car locks the doors when you start the engine anyway. I really wanted the prox sensor thing BUT on reflection i'm glad i didn't. Cos every car that i've seen that has them you get ppl trying to set the thing off and kids love to mess with them. You can get smart windows and intlli start fitted to the 300. The units are 50 each so i'm told and then you just need them fitted. What the price differnce between the 2. If your on a buget like you said then get the 300 and add the smart windows at a later time. Smart window will open close windows from the remote and close on arming
