Silly GP owners.
Damn W bodies didn't even get a real motor until 97 when the rest of the GM fleet had it in 96.
Here's how it goes and since I'm BillBoost you can bank on this.
97-04 GTP was charged
06+ the GTP name was dropped and GT was then charged
I am pretty sure 05 is a confused convoluted year.
I have in person seen an 03 Comp G, which supposedly wasn't built until 04. Production date on the door was 02/03, registration also was an 03 and that's based on the title.
So to sum things up ... SSEi does not actually stand for anything, Riviera didn't have a separate version/model level when it was charged, in 98 a whole pile of GM mid level cars had the 3800 while all other years they had smaller 3100/3400 motors, GP's were the only ones to get a Gen V blower and overall if you don't have cheat sheets .....you'll never keep track of all this crap.
