From memory 19" VE SSV wheels, the Holden Satnav and leather-ish edges on the seats. Bugger all really, but cheaper than optioning 19" wheels and Satnav on an SS. I think it was like $1000 more retail for the Thunder over the SS in VEII. Very much like a HQ Sandman was, if you optioned M20, U21, N66 and XS6 on a HQ V8 Belmont van then paid the dealer to fit a sports wheel to it you'd find it'd be dearer than a Sandman and you'd still be missing the guards, console shift (plus black paint on body and grille/surrounds), stripes and speedo (if that bothered you). Plenty were sold though talking to buyers and dealers as the extra cost was easily swallowed by higher insurance on the "sports" version. We've found a fair few L31 M21 Monaro coupes over the years as well where people ordered a decent driveline but not on a GTS, to avoid higher insurance.