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One more time on mpg: GLC 350e

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Old 09-12-2018, 08:39 PM
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One more time on mpg: GLC 350e

All- I can't seem to get to the bottom of this, and it's a major part of my decision-making...
I've driven a lot of cars over the past 50 years, and I know that fuel economy depends on driving style and type of trip. But we all have things that are important to us, and I've reached the point at which it's important to me personally that I find the right balance between performance, safety, comfort, and mpg. It's not a money thing. I won't try to preach to anyone else...these are just my values and you are certainly welcome to yours.
I really like the GLC, but I want more than 20-24 mpg overall. I'd be happiest getting north of 32 mpg overall.
Those of you with real-world experience: do you think I'd get my 32 mpg in a GLC 350e with, say, 250 days a year at 20 miles/day; 50 days at 75 miles/day; and 10 days at 600 miles? I suspect I'd only charge it overnight.
If I can't hit my mpg target with a GLC, I'm leaning toward a very different beast: a pre-owned GLE 300d.
Thanks!
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Old 09-13-2018, 04:28 AM
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GLC 43, MITSUBISHI PHEV, BMW Z1
I can help - I have a Mitsubishi Outlander PHEV as my other (town) car.
At first sight it should work.
You should probably model the numbers but the two key variables are electric range and mpg once the batteries run down.
Clearly these cars suit regular short trips on all-electric after which you can charge. Your profile fits that.
On the assumption of 20 miles range and post electric mpg of 25 mpg (similar to my PHEV), you get a blended 43 mpg.
Even varying both inputs by a few miles and mpg you should still beat your target.
However please note that these are UK mpg figures and the crude assumption is that the electric is "free". In reality it seems to cost about a quarter of the cost of petrol - although a UK assumption!
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Old 09-13-2018, 03:39 PM
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I had wanted a GLC350e but also wanted to order a car last August for October delivery. The GLC350e would not be available for several more months, it turned out, and then could have taken even longer for special order.

Somewhat close experience, though, is that of Kia Niro PlugIn Hybrid which just got 3 weeks ago for wife's car. It charges with an identical capacity charger to the GLC350e and also is rated at 26 miles electric driving. We are finding that we can get as much as 28 miles and once even 30. The 2019 Niro PlugIn is advertised at 29 miles electric, which seems reasonable in the light of our experience. Of course, it is a much smaller car than the GLC and the gasoline-hybrid is rated at 46 mpg. In 3 weeks of primarily around town driving with three 40 mile trips through NYC and Long Island traffic, the car gas gauge has barely budged from full and on board computer shows 145 mpg combined average. It also has all safety features of GLC with the advanced packages, heated and cooled leather seats, and remarkably the lane-keeping feature does not require the cruise control activated. No self-parking, which I've never used on the GLC300 anyway.

On the basis of the Kia experience, I think you would exceed your 32mpg overall target with the GLC350e.

By the way, with the GLC300 I've gotten 30 mpg on the road on long trip but tend to average 20-22 around town and 24-26 with combination of city and some highway driving.
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Old 09-14-2018, 12:59 PM
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Thanks, All.
My biggest concern is that many 350e owners appear to be getting only 9-10 all-electric miles, which is way less than the Outlander and the Niro. Of course, the GLC 350e is both heavier and quicker.
I just read a review on carbuzz.com in which they state they put 336 miles on their test 350e over the course of a week and 126 of those were electric only, resulting in a combined 29 mpg.
That also implies that they charged multiple times each day, as (over a 7 day week best scenario) they would have had to average 18 electric miles per day.
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Old 09-14-2018, 01:59 PM
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Have not heard reports of such poor all EV results on GLC350e. Thanks for info
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