I WISH I had my old Hot Wheels and Matchbox cars from the day. I had a TON of them. My dad worked for GE and helped develop the battery that was used in the Sizzler cars. I got to go to his plant and pick out a race track set before they were on the market.
I would check it every time you get the oil changed. Mine, and my wife's car, both 2014s, had less than 20,000 miles on them and the filters were really dirty. Just really depends on your driving conditions.
I got an Echo Dot (Amazon Alexa thingy) and want a good speaker for to play music on. Does not have to be Bluetooth connected. Less than $1,000,000.00 please. TIA