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#4558522 - 10/29/17 04:14 PM Ioniq vs Niro
MoneyJohn Offline

Registered: 03/01/12
Posts: 153
Loc: Southern NY
Was watching reviews of these two, same engine and battery but mpg vary by 6-7. Base Ioniq is 50mpg whereas base Niro is 43mpg. The reviewer claimed the same engine. I wonder if just the shape of the vehicle is responsible for this difference. I admit I didn't pay close attention to the weights.

Does anyone have more info on this? Not that I am considering these vehicles but lifetime battery guarantee is intriguing.
2015 Subaru Forester 2.5i Premium w/ EyeSight
2006 Nissan Sentra 1.8S Special Edition

#4558532 - 10/29/17 04:23 PM Re: Ioniq vs Niro [Re: MoneyJohn]
StevieC Offline

Registered: 08/21/08
Posts: 17116
Loc: Ontario, Canada
That's what frustrates me with manufacturers... They talk about new products but there is lackluster information and then they wonder why there is slow adoption.

If you find more info let me know. Ioniq sounds great.
'15 Dodge Journey - 90,000 KM's - SSO 5w20
'06 Hyundai Santa Fe - 535,000km - SSO 0w30 (R.I.P)

#4558554 - 10/29/17 04:54 PM Re: Ioniq vs Niro [Re: MoneyJohn]
czbrian Offline

Registered: 04/10/15
Posts: 147
Loc: Houston, TX
The comparison tool at shows they have similar curb weights (3200) but the Ioniq has a better drag coefficient at .24 versus .29 on the Niro.

#4558595 - 10/29/17 05:41 PM Re: Ioniq vs Niro [Re: MoneyJohn]
dishdude Offline

Registered: 11/14/08
Posts: 8407
Loc: Phoenix
I like the looks of the Niro. It's more of an SUV crossover, so I can see that impacting fuel economy.
2015 Grand Cherokee 3.6 - M1 5w-30 Wix 10010
2017 124 Spider 1.4T - PP Euro 5w-40 Wix 57341

#4558667 - 10/29/17 06:59 PM Re: Ioniq vs Niro [Re: MoneyJohn]
Rand Offline

Registered: 08/20/03
Posts: 12409
Loc: NE,Ohio
Niro is a normal wagon/cuv shape, Ioniq is more of a sedan/prius shape.

Also tuning.

Kia usually tunes sportier than hyundai.
2017 Jeep Cherokee Trailhawk V6

#4558925 - 10/30/17 04:49 AM Re: Ioniq vs Niro [Re: MoneyJohn]
Char Baby Offline

Registered: 05/25/05
Posts: 9634
Don't forget about the tire size(s) between the two vehicles. The larger/wider(if equipped) tired vehicle will probably have the lesser MPG.
'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'06 Mazda 3i 2.0L
'15 Nissan Altima 2.5 SV

#4559045 - 10/30/17 08:07 AM Re: Ioniq vs Niro [Re: MoneyJohn]
FutureDoc Offline

Registered: 10/30/13
Posts: 1650
Loc: North Carolina
The Niro has slightly wider tires (205 OR 225 vs 195). Niro is also 4" taller. I bet that has a significant influence. That is about 284sq inches more surface area.

Keep in mind that the Niro and Ioniq also varies within its own model line. It seems that the non-economy oriented models drop another 7mpg for the Niro (50 va 43), the non-economy Ioniq drops 4 mpg (58 vs 54).

My bet is that it is a combination of the Niro's more SUV profile, larger tires, and likely more of a responsive (less eco oriented) throttle.
'15 Hyundai Genesis Coupe 3.8 - Havoline 5w-30 & OEM
'14 Subaru Outback 2.5 - NAPA 0w-20 & Wix
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'82 Chevy C10