Specs & Features. Used 2018 Jeep Grand Cherokee Trackhawk Trackhawk - Specs & Features. Buy In-Store. 8-speed shiftable automatic. 3 yr./ 36,000 mi. Fuel & MPG. Premium unleaded (recommended) 5 days ago · See pricing for the Used 2021 Jeep Grand Cherokee Trackhawk Sport Utility 4D. Get KBB Fair Purchase Price, MSRP, and dealer invoice price for the 2021 Jeep Grand Cherokee Trackhawk Sport Utility fgPd.