It's a tie.

Both the Chevy Volt and Nissan LEAF sold 42 units in Canada in July, putting the two plug-ins on top of the podium to share the lead.

It seems reasonable to assume that the Tesla Model S actually outsold both the Volt and LEAF by a slim margin, but those figures won't be in for some time.  So, for right now, the Volt and LEAF are number 1.

Trailing the two top dogs are the Mitsubishi i-MiEV with only 16 units sold in July and the Toyota Prius Plug-In Hybrid at 14 units.

In terms of YTD totals, the Volt is king of the hill at 513 units.  The LEAF sits in the two spot with 290 and the Prius Plug-In comes in third with 162.  The i-MiEV YTD figure stands at 108 units.

Of note, the 2013 Nissan LEAF was announced for launch in Canada for July (with a reduced sticker price), though we that all of the 42 units sold were still Model Year 2012 LEAFs.  Perhaps next month there will be a significant uptick in LEAF sales.

UPDATE/EDITOR'S NOTE:  smart has also now reported numbers and an impressive (for them) 25 smart EDs were sold in Canada in July, bringing the YTD total up to 78