Car is 2008 Audi A4 2.0T S Line. It appears to sit lower than other cars (standard edition, not S Line) that I've seen around town.
I want to change out shocks and struts as I suspect they are original and a bit squishy. However I want to purchase components that will not affect the ride height. Any lower and I'll drag the front bumper when at the slope transition of my driveway (it's a steep rise from the street). And I don't want to go any higher.
I've measured 654mm front, 648mm rear to the wheel arch. Tire clearance is 22mm front and rear with 245 45R17 tires.
I've looked online, read the Bentley shop manual and subscribe to AllDATA DIY where factory ride height is not specified. I came across a forum post stating (he believed) S Line is 20mm lower than the SE. Came across the same S Line dimension on another site, but haven't come across the actual floor to arch dimension.
Bilstein coilovers lower 30-60 mm front, 20-50mm rear but I haven't found if this is from the standard A4 or the S Line.
Auto parts stores/sites (even the European performance parts sites) don't differentiate between standard or S Line, but the S Line has performance suspension, so there must be a difference.