In a weird twist of circumstances, the plug-in hybrid makers (PHEV) in the United States all soiled themselves put up some unexpectedly poor results in September, and thus turning what should have been an "all-time" best selling month for EVs into a "pretty decent" month.

In total 10,538 plug-ins were sold in the United States, good for a 18% improvement over the 8,927 moved in 2013.

September still marked the 5th consecutive month of 5 digit sales in America, but trailed the record-setting result from May (12,053) by about 1,500 units.

Breaking down the numbers further, electric vehicles from Nissan, Tesla and BMW combined to sell an estimated 6,403 pure electric cars during the month, while the other 16 mass-produced EVs available in the US could muster just 4,135 sales.

Had the major PHEV makers in America posted even historically decent numbers for this time of year, sales should have crested 13,000 for the first time with ease.

Ford's family of extended range plug-ins were off by over 1,300 units in September, the Chevrolet Volt fell 1,117, while Toyota collapsed, selling just 353 Prius PHVs (its all time worst result) after selling as many as 2,692 just four months ago.  (All the monthly data and specs on each model can be found on our Monthly Scorecard report here)

2014 Monthly Sales Chart For The Major Plug-In Automakers *Estimated Tesla NA Sales Numbers – Reconciled on Quarterly Totals from Earnings Report (Q1 Sales reported @ 6,457-3,000 Intl Delivers, Q2 7,579 total-approx reported International registrations, Q3 7,785 total deliveries ~ 3,900 US) *Fiat 500e data estimated for Jan/Feb

2014 Monthly Sales Chart For The Major Plug-In Automakers *Estimated Tesla NA Sales Numbers – Reconciled on Quarterly Totals from Earnings Report (Q1 Sales reported @ 6,457-3,000 Intl Delivers, Q2 7,579 total-approx reported International registrations, Q3 7,785 total deliveries ~ 3,900 US) *Fiat 500e data estimated for Jan/Feb

Some Other Points Of Interest For September 2014:

BMW Joins

BMW Joins "Top 5" Ranks For Plug-In Automakers For The Month Of September (Picture: BMW i8 At Paris Motor Show Today)

Top Manufacturers Of Plug-In Vehicles:

  1. Nissan - 2,881
  2. Tesla - 2,500*
  3. General Motors - 1,556
  4. Ford - 1,493
  5. BMW - 1,080 (first top in the top 5)
Pure Electric Car Market Share vs PHEV In September*
  1. BEV - 6,559 - 62.2%
  2. PHEV - 3,979 - 37.8%
New Individual Yearly Highs Set In September (previous high in brackets):
  1. Tesla Model S - 2,500* (June 1,800)
  2. Mercedes-Benz B-Class ED - 65 (Aug - 51)
  3. BMW i8 - 58 (August - 8)
* - estimated