Here's what I could find... someone mentioned a Riviera earlier... so eh.
I've raced a GN before, it must have been a pre-'87, I walked away from it pretty badly from a stop.
'65 Riviera GS 425ci
360hp 465tq
7.2 = 0-60
15.5@95
'70 GS 455 Stage 1
350hp 510tq
5.5 = 0-60
13.3@105
There is no real difference between the '70 GSX and GS (both could be had with the regular 315hp 455 or with the 350hp Stage 1 455)... except the GSX had lower production #'s, different badges, stripes, a hood tach, etc... It just depended on what engine/trans/gears combo you ordered yours with...
'87 Regal GN
245hp 355tq
13.85@99
'87 GNX
276hp 360tq
4.7 = 0-60
13.43@104
I've raced a GN before, it must have been a pre-'87, I walked away from it pretty badly from a stop.
'65 Riviera GS 425ci
360hp 465tq
7.2 = 0-60
15.5@95
'70 GS 455 Stage 1
350hp 510tq
5.5 = 0-60
13.3@105
There is no real difference between the '70 GSX and GS (both could be had with the regular 315hp 455 or with the 350hp Stage 1 455)... except the GSX had lower production #'s, different badges, stripes, a hood tach, etc... It just depended on what engine/trans/gears combo you ordered yours with...
'87 Regal GN
245hp 355tq
13.85@99
'87 GNX
276hp 360tq
4.7 = 0-60
13.43@104