if you look chassis list from eWRC you will find that many Fiesta R2t is upgraded to Rally4
Printable View
Fiesta R2T is the second generation. No upgrade possible! MK7 Fiesta
Fiesta R2T19 yes, MK8 upgrades to Rally4.
Any more news about Lancia Y Rally4?
http://www.areacorse.com/lancia-ypsi...so-una-rally4/