Reno, NV-Based Motor Vehicle Leasing Co AMERCO Dec 2017 Quarter Earnings Were On Fire .......................................................................................AMERCO Generated Dec 2017 Quarter Pretax Income Which Were Up By a Very Impressive 164% ....................................................................................... But It Gets Even Better: AMERCO Dec 2017 Quarter Net Income Was $529 Mil, an Increase of a Spectacular 714% or Up By $464 Mil Over Its Dec 2016 Quarter Net Income of $65 Mil ....................................................................................... $349 Mil or 75% of the $464 Mil Net Income Improvement From the Dec 2016 Quarter Came From an Income Tax Benefit of $349 Mil Resulting From the Incredibly Favorable US Federal Income Tax Debt Forgiveness Feature in the US Trump Tax Bill