Converting cars to Carerra Digital?

I'm looking for a HOWTO on converting non-Carerra cars to Carerra Digital.
I've been doing some googling and thus far the information I find is about D132 and not D143.
Or should I just jump into converting my D143 to D132. Also will D143 cars run on D132 without being chipped?
I've been doing some googling and thus far the information I find is about D132 and not D143.
Or should I just jump into converting my D143 to D132. Also will D143 cars run on D132 without being chipped?