Wireless CarPlay was introduced by Apple along with iOS 9 in 2015, but till now there has been no in-car infotainment system that supports the function completely
Read the full article at: telematicswire.net
2 years to get a new feature in a car is actually pretty quick given normal development times and implications to the entire OEM engineering and support systems. Others will follow quickly behind, and hopefully can adapt older models too.