Just bought this 2008 with 128,000 miles. Here's the undercarriage. Curious as to your opinions on the rust. Taking it to my mechanic for oil change and plugs so will have a better look and inspection when it's on the lift. Any spots in particular to watch out for and check out more closely? THANKS!!

 

I hate to say it but this seems quite the norm for the Mazda 5, I guess depending on where you live it will be better or worse.

I did get under mine last year, had a wire brush attachment in my drill and went over most of it, put rust killer on the metal, then some metal paint over the worst areas. It still passed MOT but with the usual advisory that there is corrosion but not excessive.

 

Salt on the roads will do this to any car.