Driftwood Prius Hybrid Purchasing & Operating Economics
2006 or 2007 Tax Year Data*
MSRP of hybrid electric vehicle (HEV) $25,228
MSRP of comparable non-HEV $22,000
Bargained-down savings on non-HEV $2,500 Consumer-Entered Data
Out-of-pocket cost of purchasing a HEV   $5,728 $5,728
State income tax credit $0 Explanatory Data or Results
Federal income tax credit for Prius $600
Estimated miles driven annually 17,276 Profitability Results
Cost of 1 gallon of gasoline (estimated) $2.50
Estimated overall EPA mileage of HEV (mpg) 49.6 *All dollar amounts in US$
Estimated overall EPA mileage of non-HEV (mpg) 21.4
Annual cost of fuel for HEV   $870 Deployed - Vehicle in use  
Annual cost of fuel for non-HEV   $2,017
Annual fuel cost savings of operating a HEV   $1,146
Estimated cost of oil change $25
Recommended miles between oil change (HEV) 5,000
Recommended miles between oil change (non-HEV) 3,000
Estimated annual rate of fuel cost increases 10%
Estimated annual general inflation rate 3%
Car loan interest rate 4.2%
Car loan term (whole years) 5
Cost of capital (aka "discount rate") 10%
Year 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Avg Fuel Costs  $       2.30  $            2.64   
Fuel Cost Increase 15% 15%
Investment Analysis Year 0 Year 1 Year 2 Year  3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Out-of-pocket cost (investment) -$5,728                        
Annual fuel savings $1,032 $1,398 $1,384   $1,536 $1,690   $1,859 $2,045 $2,250 $2,475 $2,723 $2,995
Federal &/or state tax incentives   $600                      
Annual oil change savings $58 $59 $61   $63 $65   $67 $69 $71 $73 $75 $78
Finance charges   -$241 -$241   -$241 -$241   -$241          
Battery replacement                           Warrantied for at least 8 yrs ($2888 replacement cost)
Annual savings -$4,638 $1,817 $1,205   $1,358 $1,514   $1,685 $2,114 $2,321 $2,548 $2,798 $3,073
Cash flow -$4,638 -$2,821 -$1,617   -$258 $1,256   $2,941 $5,055 $7,376 $9,924 $12,722 $15,795
0 0 0 0 1 1 1 1 1 1 1
Annual return on investment 32% 21%   24% 26%   29% 37% 41% 44% 49% 54%
Average return on investment 36%
Net present value $6,413
Internal rate of return 35%
Simple payback (deduce from cash flow; the years to turn and remain positive) 3
Based on analysis from Andy Kerr Article, Cost Effective Hybrids, June/July 2006, Home Power Magazine