I believe they all came with 16" x 8" with P225-60R16s. The max size rim would have to consider the tire profile you use. I would ask a tire and wheel place as to what combination would work. A very low profile tire would require an 18" or maybe even a 20" rim to match overall circumference with the stock tire. You can probably increase the width to perhaps a 9" rim with P245 tires without wheel well interference. You also need to keep the wheel inset (dish) spacing to avoid wheel bearing damage and having the tires sticking out from the wheel wells. A lot of enthusiasts like the look of the low profile 20R- or 30R- tires on larger rims, but these do not have good road hazard and pothole handling, and many turn into ice skates on wet or icy roads. They also cost a lot more. Believe it or not, the engineers at GM probably have put the best overall wheel/tire combination on the car already.
22in
6x9
17 gal
The tire size is P225/60R16 for most Intrigues.
P 205/65/16
Yes 16" Most common size now.
I believe it's a 35mm
9006 for the low beam, 9005 for the high beam
9006 low beam, 9005 high beam
they are 5.25 inch round just replaced mine in a 99 intrigue.
Low beam is a 9006 bulb, high beam is a 9005.
32mm or 1"1/4