This useful thread explains the difference between the two systems. https://www.the75andztclub.co.uk/forum/showthread.php?t=172172
information, tech, specs, news and reviews for the MG ZT and Rover 75 classic cars including repairs, servicing, upgrades and the diy modifications on my own MGZT. I am no expert on these cars just a keen enthusiast ….. and I hope this collection of posts will be of interest to others with a similar interest
This useful thread explains the difference between the two systems. https://www.the75andztclub.co.uk/forum/showthread.php?t=172172