Perhaps Kia builds a better Buick, which is why we see the Buick LaCrosse as the K900’s stiffest competition.
Both offer relatively simple takes on a wafty luxury sedan without a sharp edge.
The only edge we see? The Buick now sports a mild-hybrid system that propels it toward better fuel economy.
The Genesis G80 shares a V-8 with the K900, and that’s about it.
The G80 is a little curvier and offers a potent turbo-6 that works better than the K900’s mill.
The Cadillac CT6 is a little more refined and upscale, and includes active safety features that the K900 skips.
The Acura RLX is more expensive, but has a better handle and a hybrid version that the K900 doesn’t.
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|2018 Kia K900Browse Used Listings||2018 Acura RLXBrowse Used Listings||2018 Buick LacrosseBrowse Used Listings||2018 Cadillac CT6Browse Used Listings||2018 Lexus GSBrowse Used Listings||2018 Genesis G80Browse Used Listings|
|15 MPG City / 25 MPG Hwy||20 MPG City / 29 MPG Hwy||20 MPG City / 35 MPG Hwy||18 MPG City / 30 MPG Hwy||16 MPG City / 34 MPG Hwy||15 MPG City / 27 MPG Hwy|
|Regular Unleaded V-6||Premium Unleaded V-6||Gas I4||Turbocharged Gas I4||Intercooled Turbo Premium Unleaded I-4||Regular Unleaded V-6|
|Large Cars||Midsize Cars||Midsize Cars||Large Cars||Midsize Cars||Large Cars|
|V6 Premium||Sedan w/Technology Pkg||4-Door Sedan FWD||4-Door Sedan 2.0L Turbo RWD||GS 300 RWD||3.8L RWD|
|Rear Wheel Drive||Front Wheel Drive||Front Wheel Drive||Rear Wheel Drive||Rear Wheel Drive||Rear Wheel Drive|
|Automatic w/OD||Automatic w/OD||Automatic||Automatic||Automatic w/OD||Automatic w/OD|
|Detailed Spec Comparison|
|2018 Kia K900 vs. 2018 Acura RLX||2018 Kia K900 vs. 2018 Buick Lacrosse||2018 Kia K900 vs. 2018 Cadillac CT6||2018 Kia K900 vs. 2018 Lexus GS||2018 Kia K900 vs. 2018 Genesis G80|