Can I train for my PPL in an Ikarus c42 microlight?
No. You could train for a microlight licence though. You might find that you don’t actually need a PPL at all. There are microlights out there with performance close to Cessna 152 standards. Look at the ALPI Pioneer as an example. You can always cross train later and upgrade your licence. You can use your microlight hours for a %age of the required hours for your PPL..