Let's write down our initial mileage in 2018. Guess how many miles you will drive this year and compare with the real number when 2018 is over.
2005 ZHP: 144,900 miles. Guess: 2,500.
2011 X3: 78,900 miles. Guess: 13,000.
2012 335: 77,820. Guess: 2,500.