At this point you should have identified which pair of vehicles is the cheapest to run, and, more importantly, you'll know how much money that new pair of vehicles will save the family if they switch. Now convince me to switch from what I currently have to the choice you have identified. Explain the benefit to me: over the course of a year, over the lifetime of the vehicle. Your choices are based on $4 per gallon fuel prices. What happens when fuel prices dip down below $2 again? How does this affect your decision? (You may be aware that fuel prices miraculousy drop every November before an election as the party in power manipulates the market to keep the voters happy with them https://www.bloomberg.comews/articles/2012-11-06/the-oddities-of-election-year-gasoline-prices) Convince me to switch from my current vehicles to your choice of vehicles. Help me make an informed decision based on the economic information