Why did a Tesla executive get so angry at Hyundai? And what's the new Lexus NX hybrid crossover like on the road? This is the Week In Reverse for Friday, July 18, 2014, right here at Green Car Reports.

They've been on sale for two months now, but BMW won't say how many i3 electric cars were sold with the REx range-extending engine. So, some owners and enthusiasts took matters into their own hands. Using serial numbers, they calculated the proportion of REx versus regular battery-electric i3s at about 3 to 2.

Audi swears its upcoming A3 e-tron plug-in hybrid isn't a compliance car. What it really means is that the company thinks the car has to be good enough that buyers will like it. We'll see what sales volumes look like when it arrives next spring.

We drove the 2015 Lexus NX 300h hybrid luxury compact crossover that'll hit dealers at the end of the year, and found it smooth and comfortable--even if it's not quite as sporty as Lexus would like you to think.

Specs for the 2015 Chevy Volt range-extended electric car were released this week; it's got one minor change (4G LTE connectivity) and one major one, a bigger battery.

More specifically, its lithium-ion battery pack rises from 16.5 to 17.1 kilowatt-hours, though the rated electric range stays the same, at 38 miles. Owners will probably see a slight increase in real-world range over the 2014 model, though. All eyes are now turning toward the updated 2016 Volt--expected at next January's Detroit Auto Show.

Finally, are Tesla's Supercharger fast-charging stations subsidized by Federal or state funds? A Hyundai executive claimed they were--and noted his own company got no U.S. funding to develop its hydrogen fuel-cell cars.

We contacted Tesla, and the company hit back, and hard. The company's VP of business development said he was "furious at any allegation that any public money was spent on the Supercharger network."


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