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My front tires wore out at 16K miles. I didn't like the lack of traction with the OEM's, and with rainy season coming up, I replaced them with non-LRR tires from Kumho. I have driven the new tires for about 1000 miles. Based on the miles/kwh efficiency on regular driving routes, I estimate...

Here's the latest EV sales numbers: http://www.greencarreports.com/news/1094705_plug-in-electric-car-sales-in-sept-leaf-up-again-volt-down/page-2 Spark EV just sold 51 units in September. It appears to be plummeting. I'm sorry to see this well designed car lose momentum in the marketplace...

At 16K miles, my front tires are wearing thin. I was thinking of replacing them with non low rolling resistance tires for better traction. The rears still look great. The tire shop I went to insists it's not safe to mix them, and is trying to get me to buy 4 new tires. Anybody know if...

I read recently that 97% of all electric cars are leased. I'm sure for the same reasons I leased mine (first ever lease for me) - uncertainty about battery life, technology obsolescence, good financials deals, etc. So what's the likely scenario two or three years from now? Is there going to a...

I just read about this after market range extender from KSPG. http://green.autoblog.com/2014/01/16/kspg-testing-low-noise-ev-range-extender/ Video here: http://m.youtube.com/watchv=6i4AK2LKygQ&desktop_uri=%2Fwatch%3Fv%3D6i4AK2LKygQ It looks like a really good solution for range anxiety to...

I'm loving my Spark EV so much that I'm putting way more miles than my lease will allow. I'm also very confident in the car after 4 months of ownership, so I think I will buy one outright. With the 8 year, 150K mile warranty that comes in California, I think the post-incentive prices of $19K...

Is there scientific or conventional wisdom about whether it's more energy efficient to coast or to use battery regen in normal driving? For example, if you're on a slight downhill stretch of road, is it more efficient to put the car in neutral, or in L mode? My bet is on coasting. There's...

Does anybody else feel like the L drive mode regeneration is too aggressive? It slows the car down so much that I rarely have occasion to use it. There is a 900' hill on my commute that I drive everyday. Coming down the hill, on a sustained slope (2 miles) of about 6-7%, I still can't use L...