Considering how many Truck and Xfinity races he did along with the Cup series, what he's accomplished isn't much different than the 60's and 70's era, also considering he's in top tier equipment with Gibbs/Toyota racing just like Petty was with Chrysler backing. .He's the reason for the rule that Cup series drivers can enter only 5 truck and xfinity series races. There is no comparison though, I don't think he'd last 5 seasons if even that in Petty era Nascar cars,they were a lot harder to drive than the ones they do now. Kyle's 11th in all time Cup Wins but I can see him making it up to 9th but I don't think he'll surpass Dale Earnhardt sr's 76 wins.
AJ Allmendinger to get back behind the wheel in the Xfinity series for Kaulig racing driving the #10 Camaro https://nascar.nbcsports.com/2019/03/21/a-j-allmendinger-joins-kaulig-racing-for-multiple-xfinity-races/