I have two GPS Lap Timer thingies from Qstarz:
BT-Q1000eX:
http://www.qstarz.com/Products/GPS%2...EX-10HZ-F.html
LT6000:
http://www.qstarz.com/Products/GPS%2...T-Q6000-F.html
Some individual lap data and sector times:
Vette1.jpg
A screen capture of the lap timer software showing speed chart at bottom, G-Meter at bottom right and vehicle position on track (in upper center) with the G-values in bar form as the dot moves around the track..
http://youtu.be/549EAnRzK20
Another vid with instrumentation showing a sample car video matched to the track map, g-meter and speed chart:
http://youtu.be/HVJByZ3Q3TA
Comments welcome.