Hi All, I'm a newbie, very exited about buying a 2nd hand HgAg XR6T tomorrow :D , However after test driving the other day, when the owner started the car to move back into garage, I noticed a very small (.2/sec) puff of dark smoke/soot from the tailpipe, is this normal? The car has done 17000 kms, mainly highway, don't expect its been mistreated. Also saw a little dampness on the rear diff, Ford dealer is checking this out today. Would the above be covered in the Ford new car warranty? Will really appreciate your feedback, Regards, Rick.