That 25,000-unit mark has met it match in that cumulative sales of the Nissan LEAF in the US have now eclipsed that milestone.

For 2013, The Updated, Reduced-Price Nissan LEAF is Built in the US and Selling Like Hot Cakes

For 2013, The Updated, Reduced-Price Nissan LEAF is Built in the US and Selling Like Hot Cakes

It took some time, that's for sure, but the LEAF is on a roll right now, so the next big milestone (50,000 units) should fall faster than this one presented here.

Remember that the Nissan LEAF launched in the US way back in December 2010, so there's been 29-plus months of sales here in the US.  If we do some simple math, we see that LEAF sales have average roughly 860 units per month since launching here.

But with the introduction of the cheaper 2013 US-built LEAF, that average has so far climbed by quite a bit.  For the first 4 months of 2013, LEAF sales have averaged 1,369 units per month (note: March 2013 was a record-setting month for the LEAF in the US with sales checking in at 2,236 units).

Regardless of how you play with the numbers, the LEAF's milestone achievement (25,000 units) and its staying power (29-plus months on sale) show that the electric Nissan is well on its way to overall success.

Here's hoping 50,000 falls fast!