I have a 2007 Infiniti M45 that has 105,000 miles on it. I have had it for a year. It had 98,000 miles.I have had no problems with it. I change the oil every 3,000 miles, and spark plugs and transmission fluid a year after I got it. Plugs where in terrible shape. I had a 2004 but was hit and totaled. Price 8.000 dollars for this car. Exterior in excellent condition, interior too. Factory plugs are expensive but there was a difference in performance. I am 72 and my car goes fast for me. Does not burn oil. Covid has stopped me from traveling much. I have no complaints so far, except for gas, but I am not complaining. No engine lights. I'm Good and Happy and Blessed by the Best. Jesus.