BMW’s sales of electrified vehicles have more than doubled so far in 2017 compared to the same period in 2016.

In a corporate sales report from Friday, BMW Group reported that more than 10,000 battery electric and plug-in hybrid vehicles have been delivered to customers worldwide. That represents an increase of more 110.1 percent over last year.

The sales results reflect growing interest among customers in alternative drive train vehicles, BMW said.

Current sales figures include the BMW i3 all-electric and extended-range models, and the i8, X5, 3-Series, and 7-Series plug-in hybrids. The company expects plug-in vehicles sales to increase through the launch of the plug-in hybrid BMW 530e iPerformance this month, and the Mini Cooper S E Countryman All4 plug-in hybrid in June.

Overall new vehicle sales have been up 5 percent this year over last year for BMW Group (which also includes Mini and the BMW Motorrad motorcycle division). The U.S. had a decrease of 1.6 percent in deliveries during that time.

All of the plug-in vehicles sold in the U.S. were up over 2016 (though only the i3, i8, and X5 were on sale last year), according to HybridCar’s Dashboard; that’s in line with global sales growth for BMW’s plug-in vehicles.

The company is off the path of reaching its huge growth forecast of selling 100,000 plug-in electrified vehicles this year. BMW would need to be selling about 8,334 units per month to hit that target. The rest of the year will need to see a substantial spike to get there.

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CEO Harald Krueger made that 100K claim in December. He said the company is hoping for available government incentives and charging infrastructures that will heavily influence demand.

That will also impact the automaker’s decision on going with all-electric or plug-in hybrid models through 2025. So far, the company has been leaning towards adding plug-in hybrid variations of its current model lineup. Growing the i-Series brand and all-electric model launches has been put on the back burner.

Things will need to change for the German automaker to hit its target, announced last year, of having between 15 and 25 percent of its worldwide sales come from PEVs by 2025. For this year, PEVs have represented about 6.7 percent of global BMW brand car sales.