How do i know if its a S-3?

i have a 74 chevelle malibu and am wondoring if its a s-3? is there any vin code numbers or interior work to see if its a s3? thanxhttp://c/Users/od/Pictures/2008-03-12

The second letter of the VIN should be " E "...

The S-3 was the 1974 replacement for the SS.

Laguna Type S-3 had a new aerodynamically styled soft urethane front end, 15 inch ralley wheels, dual sport mirrors with remote control on drivers side, louvered coach windows, special shocks and front and rear stabilizers. It also came standard with steel-belted radial tires to complement the radial tuned suspension. The interior featured a 4 spoke sport steering wheel to handle the variable ratio power steering. Standard interior featured a bench seat covered with 'herringbone cloth' unique to the Laguna, this model also offered the infamous Swivel bucket seats

Standard Laguna

White or Black solid color.
Metallics were in Silver, Bright Blue, Orange or Red.Laguna with Sport Roof

White or Silver with either a Red or Black vinyl top.
Black with either a Silver, White or Red vinyl top.
Bright Blue or Orange with either a White or Black top.
White, Silver or Black with a Red top.Laguna with Sport Roof and Body Striping

White or Silver, with Red or Black top, stripes and bumper strips.
Black with Silver, with White or Red top, stripes and bumper strips.
Bright Blue or Orange with White or Black top, stripes and bumper strips.
Red with White Silver or Black top, stripes and bumper strips.