I have a 1968 Cutlass Supreme Holiday Sedan (4 door, no post) and can't seem to find any back ground information on this vehical.Any info would be much appreciated.

 

That sounds like the Supreme Holiday four-door hardtop. Should be body style 4239. Olds built 15,067 of those. If it is really a "Town Sedan" then it would have had a B pillar and Olds made 5,524 of those, that would be body style 4238. Regular features were dual master cylinders,four way flasher,back up lights,side marker lights,seat belts,"high-preformance starter,hood insulation and deluxe steering wheel. The engine was a little beefier than the 350 in the standard Cutlass because Olds upped the CR to 10.25:1 so brake hp was 310 @ 4800.

 

i got the same car are they worth any thing?? im got mine for $500

 

It all depends upon the local market and the condition of the car. Overall, compared to a '68 442 in mint condition, not much. To you obviously, $500. Not being smart, it is just value is in the eye of the beholder.