Yes.
If you converted Carrera analog cars that were designed to be digitally upgraded- it was very simple. Replace chip. Race.
If you converted Carrera cars that were not designed to be upgradeable, then you know exactly what you will need to do with other manufacturers cars. You'll need to solder the leads, cut a hole in the chassis for the LED, and find a way to mount the chip. I've used hot glue to hold the chip in place on my conversions. Works fine.
If you converted Carrera analog cars that were designed to be digitally upgraded- it was very simple. Replace chip. Race.
If you converted Carrera cars that were not designed to be upgradeable, then you know exactly what you will need to do with other manufacturers cars. You'll need to solder the leads, cut a hole in the chassis for the LED, and find a way to mount the chip. I've used hot glue to hold the chip in place on my conversions. Works fine.