Ken Block’s “Hoonitruck,” a heavily modified 1977 Ford F-150 used in the late rally driver and viral-video star’s “Gymkhana” series, will be up for grabs at Barrett-Jackson’s annual Scottsdale, Arizona, collector car auction, which starts on Jan. 18. The truck was commissioned by Block, who died in 2023 in a snowmobile crash, as a follow-up to the…