I need help figuring out what's wrong with my suspension. Lately when I hit potholes on the road it feels like I am practically slamming my car against the pravement. I have aftermarket low profile tires and 17 inch wheels but I have only noticed this problem recently. The car feels quite normal under smooth roads and tiny potholes but whenever I hit a midsize one on the freeway I feel like it's bottoming out. This can't be good for my engine mounts. Like I mentioned in an earlier post I have 120k miles on the car so it's possible things are worn. Is it the structs that are broken? I have pushed my car up and down and it seems to dampen at a good rate. Someone mentioned the subframe brushing for another post does anyone know where this is?

I am located in Orange county in Socal and I have been bring my car to Dr. Volvo for maintance in the past year. They are great people however they aren't cheap. Does anyone have recommendation for a good indep Volvo master mechanic I can take my car to? For example, I have an slight coolant leak on the radiator hose and it's going to be roughly 400ish USD to replace.

I have tallied up my maintance cost and discovered I have spent close to $6700 on maintance for the past 2 1/2 years for 60,000 thousand miles. Does this seem normal? (A lot of the cost come from putting on close to 25,000 miles a year, performance tires.) My engine mount keeps failing, rotors, and replaced the ignition key mechanism. So far the new slotted/frozen rotors I got are holding up.

Funny thing is I am considering a new car but I still want to keep this Volvo despite what a money pit it has been.