I break in new cars driving normally in city braking in brakes with soft peddle. Then get out on county road and do 55, slowing down at small communities, then get on I system for a spell. I have a certain loop I make which is about 45 minutes and do that the first 5 days. About 40 miles per day or first 200 miles. Then drive whatever comes up, errands around town, take a ride to a town for lunch that has mixed speed limits for another 300 miles.
Then I change oil and filter around 1000 miles to Mobil 1.
IMO, I would not recommend hard braking and fast starts...etc. To each his own.
12, SLE-2, Black, 6 cyl, AWD,