Join Date: Sep 2002
Location: Concord, CA USA
Not to sound like the guy who doesn't use creative and free methods to solve a problem, but here's what I use:
A Clfford Intelliguard (circa 2001) car alarm. It has the regular car alarm stuff, plus ignition kill and car jacking features.
Regardless of whether the alarm is "on", each time you start car, you have 20 seconds to punch in a sequence of button pushes or the car will shut off. Same sequence required if someone opens a door with the car running (carjack). 20 seconds to input code, if not, car shuts off in another 20 seconds.
In addition to the ignition disable, it also shuts off the electric fuel pump. Several problems for a would-be jacker.
With these type of alarms, you can add on features as well. I opted also for the tow away disable feature: If the car is jacked up (lifted) more than 3 degrees or 3" from its parked position, it disables.
Also, for $80 per door, I can add electric door locks. I haven't yet, but it could be a neat feature in a vintage car.
It was a little pricey (about $600 installed) but it's good piece of mind knowing it would be VERY hard for someone to steal the car. Plus when you consider the thousands of dollars invested, it's really not that much.
'68 Camaro RS
zz383 (2005) rebuilt in 2019
AFR 195s, Quick Fuel 680, 700r4, Detroit TruTrac 3:42s