While everyone is tossing around their opinions, I'd say the best reason for the 3.5 to replace the 3.3 in the Stinger is gas mileage. The CARB and EPA mandates are still pretty tough in spite of Trump having toned them down, and the 3.3 is a pretty thirsty engine. The 3.5 will help get them closer to compliance in the coming years.
Better reason is the upcoming harsh European WLTP regs.
Under current Kia line-up emissions level for Europe, Kia would be hit w/ over a
billion dollar penalty, which is why Kia (and Hyundai) are rushing more hybrids, PHEVs and BEVs (and why pretty much the entire Genesis lineup will be available w/ an EV variant, starting w/ the eG80).
Wouldn't make sense to keep the 3.3TT as is (the 2.5T upgrade, at least, should be headed for LHD Europe, even if it doesn't make its way to the RHD UK).
Agree with everything. Huyndai/Kia didn’t accidentally make 15,000 extra 3.3 turbos.
Another thing hat makes me think they’ll go 3.5 is that the 2.5T is more or less confirmed. Their 2.0T is aging and they are desperate to be done with it for a number of reasons.
At the same time, H/K has updated the NA 2.0L w/ the Smart-stream tech (which is used in the new Optima, Sonata and other models in Korea and other markets), so while unlikely, it's not out of the realm of possibility for them to do add Smart-stream to the 3.3TT.
But think the more likely scenario is that they are keeping the 3.3TT for another year - until the higher output 3.5TT that is going into the
G80 Sport is ready.
If they go with the 2.5T it’ll be making around 290-310hp, depending. And they’ll probably want a performance boost for the “top” engine too. Could just be a tune on the 3.3T, but I think he’ll just switch over to he 3.5t.
The 2.5T is rated for 300 HP in the
G80.
While the engine is capable of considerably more output, don't think we'll see any diff. in the output for the
G70 and Stinger.
Another engine option (at least for Europe and Korea) is the new 3.0 I6 diesel.
Even tho diesels have been falling out of favor, HMG spent a considerable sum developing the new diesel (many have commented that it's on the level of the German lux makes) and the 2.2L, while fine in something like the Optima, was never suited for a performance-oriented vehicle like the Stinger (perfectly fine w/ the Stinger not having an underpowered
emissions special like what VW has w/ the Arteon and Audi w/ the A5 Sportback - even if it keeps the cost of entry, taking into account displacement and CO2 taxes, higher).