[stageshoot]

So an average speed of about 46 mph to cover 62 miles.

These examples really illustrate my point - driving on motorway/DC journeys where the average speed is around 50, even if you try to travel at 70 where you can, and maybe sometimes find yourself tootling along behind lorries for whatever reason, is alway going to result in better efficiency than a journey where the average is much nearer to 70.

So when someone asks if they can expect to travel 200-220 motorway miles at 68mph all year round in rain, with headwind etc, and without stopping - the actual answer to that question is no. But...they are very likely to be able to do it if in fact they are actually going to be averaging a speed significantly below 68mph.

mid course you can still do 200 to 220 in winter at 68mph. You would have to be getting 3 miles per kw to get down to 200 it just does not happen in the Kona with a heat pump even terrible weather

In 80k miles over 2.5 years I have never ever seen a figure that low even when hacking it

 

[Bill N]

64 - 5% ≈ 61

210 / 61 ≈ 3.4

There’s no way my Kona will return 3.4 mi/kWh at a constant 68mph on a crappy winter’s day (heavy rain, head winds, very cold). I guess it probably would if I slowed down behind lorries occasionally though.

 

[MrChaz]

The worst I've seen is 2.9 miles per, but like I said that was 70mph into a 20mph wind at 0c

 

[Bill N]

The worst I've seen is 2.9 miles per, but like I said that was 70mph into a 20mph wind at 0c

Exactly - which, when you take off a realistic 10% buffer which most people would want at the best of times (let alone in weather like that), that gives you 167 miles.

 

[Electrickery]

Average speeds can be quite misleading really. I did a trip the other week, identical route both ways, 114 miles each way. I took it easy on the way down, trying to keep around 60/65. Bit of rain too outbound. Used 58% of the battery (this was an Ioniq 38 btw) so well over 5mil per kWh.
Coming back as it was late I pushed on and was doing 75/80mph indicated where I could. No wind and very dry.
Return trip used 82% of the battery.
But average speed outbound was 50mph, return was only 57mph. Those bouts of 70mph+ really do eat into the battery it would seem.
There was only about 20 minutes difference between the 2 journeys, so a charge stop would have easily wiped out any benefit of travelling faster, had the journey been slightly longer.

 

[ALC]

Over 42K miles in the past 24 months, I've never had experienced less than 200 miles range - except driving into a headwind with a ladder on the roof! Winter average is 245, now it's rising to 270 or so. Lifetime Miles/KwH is 4.1 with 4.4 on most recent trips with ACC set to 68mph on motorways. Worst I've EVER managed was 60 mile MWay trip at 80 where I recorded 3.4. Speed is the real killer of range IMO

 

[MarkyM]

cnet.com report Hyundai Korea have announced yesterday that they will stop selling the Kona model there (including face lift models?). Not sure if there has been total loss of confidence and resultant poorer sales of that model (40% drop in sales) due to fires which has caused this? Huge recall/battery swap effort ongoing there and in the USA..
Not sure if they have announced anything in UK/Europe regards recalls?
Hyundai Korea are saying they will now just concentrate on their new Ioniq brand of EVs.

 

[davesul]

cnet.com report Hyundai Korea have announced yesterday that they will stop selling the Kona model there (including face lift models?). Not sure if there has been total loss of confidence and resultant poorer sales of that model (40% drop in sales) due to fires which has caused this? Huge recall/battery swap effort ongoing there and in the USA..
Not sure if they have announced anything in UK/Europe regards recalls?
Hyundai Korea are saying they will now just concentrate on their new Ioniq brand of EVs.

And a slightly different slant on this story from another news source - The Verge - Hyundai stops making the Kona EV for South Korea after battery recall

includes this text:
"There are certainly no plans to discontinue the Kona EV in the U.S. market. It is an extremely important product for Hyundai in the U.S. In fact, we recently heavily invested in a mid-cycle enhancement to Kona EV that makes our small CUV even more appealing,” a spokesperson for Hyundai North America said in a statement to The Verge. “We’re also expanding availability into even more states as EV vehicle adoption becomes more widespread. Hyundai has proactively addressed two potential Kona EV safety issues with voluntary recalls.”

 

[Bill N]

64 - 5% ≈ 61

210 / 61 ≈ 3.4

There’s no way my Kona will return 3.4 mi/kWh at a constant 68mph on a crappy winter’s day (heavy rain, head winds, very cold). I guess it probably would if I slowed down behind lorries occasionally though.

Maybe there’s something wrong with my Kona....

I’ve just driven 75 miles in fine weather (10°C, sunny, no wind).

The cabin was already up to temp when I reset the consumption readout, with the heating drawing minimal power.

Cruise set at 71mph (=68mph according to my phone), with that speed maintained exactly except for a couple of lift offs to glide up behind something before having a gap to overtake, and a couple of bumps up to 73mph to gently get past stuff a little quicker.

Average consumption.....3.6mi/kWh

So that gives a 90% range of 207 miles.

There’s zero chance of my car giving over 200 miles in bad weather, if 68mph is maintained.

 

[Ben Cole]

That sounds about what I'd expect from my car in the same conditions..

 

[rompik]

@Bill N , nothing wrong with your car. This is exactly what to expect.
Drive @74mph (77 on speedo) and you will get 3.0-3.1m/kwh, no more.

 

[MarkyM]

Ok. Thanks for the input all. Tesla Model 3 LR looking best bet but just a bit long of a car and saloon rear end. Model Y a touch longer, higher and more expensive and probably a few months away if that.

 

[ALC]

Drove from Winslow (Bucks) to Stafford and back for work yesterday. 106 miles there and 109 miles back, mainly along Motorway and A road. ACC set at 68mph (true 65) on the Motorway, Aircon off, tyres at 41psi. Temperature was about 7C - 10C on the way there and 14-12C coming back.

Finished with 49 miles on the GOM

So - 4.3miles / kwH overall for the 215 mile trip.
Yes - this is a true 200+ mile motorway machine.....

 

[Bill N]

Worth noting that the difference between 3.6mi/kWh when travelling with cc at true 68mph, and 4.3mi/kWh when travelling with cc set at true 65mph, is too large to be purely due to that 3mph difference, and is much more likely to be due to the fact that the average speed for that journey was <55mph, whereas the average speed during the 75 miles section I drove at 68mph was….68mph.

Yes, it will do over 200 miles in any weather…. if the 200 miles are not all at 68mph.

 

[rompik]

The distance and time - 2hrs to cover 109 miles
I agree this may be real-life driving condition on that route, or real-life conditions on some motorways for many of us. But it is not objective test to say that car drives 4.3mi/kwh @65mph.

 

[Bill N]

Exactly - OP wanted to know if, having "set ACC to 67-68mph", whether it would be possible to do an "easy 200-220 motorway miles….without stopping in summer and winter/rain etc".

Like I said straight away, the answer to that depends on how bad the winter conditions are… but in some situations it will be not be possible (unless the speed is reduced - through choice or otherwise).

 

[SoulGW]

I have the Kia Soul (same set up but different battery) - I have NEVER seen less than 220m from mine. I cruise on motorway at 70 (speedo so probably 68mph true) and in summer get 240-260 on motorway and 280-300 around town. In winter perhaps 220 motorway and 240 round town.

I cannot see youd have any issue doing 200m all year round in one hit in a 64kw Kona.

 

[Bill N]

Anecdotal reports aside, it’s a matter of fact that no one will be able to easily cover 200 motorway miles at a fairly constant 67-68mph if the conditions mean that the average consumption is < ~3.3 - 3.5mi/kWh…(bearing in mind that the car does ~3.6mi/kWh at 68mph in fine spring weather)

The Kona is an efficient EV, but it can’t work miracles.

I think it’s very likely that what actually has happened when a car appears to do better than this is the speed was lower for significant parts of journeys and/or the conditions weren’t really so bad (and so not really relevant when considering how a car performs in a reasonable worst case scenario).

 

[SoulGW]

I admit I am talking from experience of a Soul not a Kona, but why on ACC at about 65-68 true mph would you only get 3.3 to 3.5m/KWh?.


In the Soul I would get nearer 4 in the summer and 3.5-3.8 in the winter. Seen 5 on many occasions on A roads.

I agree if you set the acc at 75-80 you will be in the low 3.x numbers, but very late 3’s or low 4’s perfectly reasonable - if you can get behind a large 4x4 or national express coach, you can do 70 at 4.2m/KWh if you set the ACC to follow at a distance of 3 “blocks” or 4.1 at 4 “blocks”. I doubt the Soul is any more efficient than the Kona.

 

[Bill N]

why on ACC at about 65-68 true mph would you only get 3.3 to 3.5m/KWh?.

The Kona will only return 3.6mi/kWh at an almost constant 68mph even when the weather is relatively good (eg. 10°C, sunny, no wind).

Do the same in poor winter conditions (cold, wet, head wind) and physics dictate that consumption increases further causing returns to fall below 3.6mi/kWh, and meaning it’s mathematically inevitable that "200-220 motorway miles" are not "easy" at that speed before you reach ~10% remaining, (and then most people will either slow down out of fear of emptying the battery completely, or, find a charger).

I don’t consider finding a suitable vehicle(s) to try and draft for multiple hours to be consistent with telling the OP it’s a car that will do an "easy 200-220 motorway miles" at 67-68mph in any weather.

It simply won’t…unless you do things such as finding yourself tootling along behind lorries or other slower vehicles for a cumulatively significant amount of time - because you’re using ACC and haven’t overtaken swiftly, driving on A roads rather than motorways (and hence probably not driving at a constant 68mph), or drafting other vehicles for hours on end.