Been a lot of updates and improvements since then. Most targets now days are magnetic with jigs to fit a manufacturer supplied hole or shape in the body or subframe. These are quite accurate but not cheap. The lesser expensive ones of less than $12,000 are fragile, or cumbersome to work with. The ones where you use an arm and pointer get old really quick. A set of centerline gauges and a calibrated eyball with the ability to read a tape measure is a lot less expensive. I had Chief demonstrate a new laser system twice, (Velocity) once on a then new 2004 Taurus car with the front knocked off, and on a 2005 Buick Lucerne that was "T" boned in the drivers side. With these systems you pull to dimensions supplied in the database after hanging the targets and laser bar according to instruction. Then the out of tolerance conditions are displayed. You then make the appropriate pulls back to dimension until the areas out of tolerance turn green, and stop. After allowing for relaxing of the stretched metal, you check it again and sometimes need a secondary pull. Both of these cars changed dimension overnight and the measuring system needed rehung and additional pulling taken place. At $55,000 I thought the results were not cost effective for a small shop. They also wanted $12,500 difference for a new S-21 series rack with three towers. I stayed with my Chassis Liner and still have it. Rob