The G6 offers either a conventional power sunroof ($700) or a panoramic roof ($1,500) with four glass panels.

On the plus side, testers found Edge's power panoramic sunroof a unique feature.

The car was loaded with features, with the only options being a 16-way adjustable driver's seat and a power sunroof.

For $2,900, a premium package includes leather upholstery, power sunroof and other items.

A power sunroof costs an extra $725; an automatic transmission adds $850.

Dual-way power sunroofs were available on this car in either trim.

For $900, you can substitute a power sunroof.

The Cayenne S adds a power sunroof and memory for the driver's seat.

The latter added leather seats, heated front seats and a power sunroof.

However, the power sunroof was not very popular and was only offered for 1980 and 1981.