Hi,
The engine bay photo isn't very clear, but the most obvious differences are, a Turbo car would have "Turbo 3000" lettering on the intake cover instead of just "3000"....There would be a boost release valve on the driver's side of the plenum cover and the cam covers would be finished in red crackle paint instead of silver.
The exterior of the car has NA chrome trim and wheels and the smaller NA front spoiler, with no rear spoiler.
The interior photo is of little help, as the Turbo car has the same number of dashboard dials, except that the NA's ammeter is replaced by a boost gauge in the far left recessed guage!
Cheerz,
JEZ