By body size: Categorized into compact (under 4.2 meters), sub-compact/compact (4.2–4.6 meters), mid-size (4.6–4.9 meters), large/full-size (4.9–5.2 meters), and extra-large SUVs (over 5.2 meters).
By purpose and structure: Divided into urban SUVs (typically featuring unibody construction and emphasizing comfort) and rugged off-road SUVs (typically featuring body-on-frame construction and specialized four-wheel-drive systems).
By powertrain type: Includes internal combustion engine (ICE) SUVs, hybrid SUVs (including plug-in hybrids), and battery electric SUVs; recent years have seen a significant trend toward electrification and intelligent technology.