Got my Rhino Ramps at Pep Boys for $32.00.....
On a lowered Z(1.5") they won't work on the front, but will work on the rear.....until I got the Corsa Indy exhaust
Like the other guys, I made ramps out of 1x12 pine boards. made 'em for the front and rear. 4 "steps" for the front and 5 "steps" for the rear. I bolt 'em to the garage floor so they won't move. The car just glides up real easy. I beveled the leading edges. Have a 2x4 stop on the rear ramp. Since the 1'' boards are actually 3/4" in thickness, you get a total lift of 3" in the front and 3 1/2" in the rear.
You'll need a super low profile jack up the front, as you can't reach the front cross piece jacking point from the front of the car. The rear is not a problem. You'll need a special jack, or you could use 2 jacks on each side of the car. Make sure you know where it's safe to place the jack on the car(see owner's manual or the shop manuals, if you have 'em).
I found the World's best Jack on the net. It's made by AC Hydraulics in Denmark, and it's designed for low slung Sports Cars. It starts at 3.1 inches, and will go up to 28". It's rated at 2,800 lbs, which is plenty. It's not cheap, but it reeks of quality.....
$400.00 total cost, which includes freight charges. I also bought their jack stands. Very safe pin design. To get the lift height I needed, I bought 4 of the the 11,000 lbs units @ $50.00 each, delivered.
Here's the Distibutors website:
http://www.geocities.com/Eureka/Vault/3251/hydraulicjacks2.html
These are very popular Jacks/Stands, so you may have to wait 30 days like I did.....A friend of mine bought one and loves it!! He's a mechanic @ American Airlines and knows quality when he sees it

He found another source, but at a much higher cost.....
HTH,
Barry