You've missed a lot. The 2021 Supra uses the BMW M340i, which contains a host of design upgrades. Chief among them are the six (vs. 2) exhaust port heads and matching manifold. The engine also uses a higher capacity fuel system, a much more effective "split" cooling system, a lower...
The six (external) port head and manifold flow far more efficiently. It's a substantially more expensive set-up. BMW wouldn't go to the added trouble and expense if the cheaper set-up were "the better and more efficient design.
And I'll note that the 6 port engines uses a superior "split...
The 2021 car's trap speed will be some 5-6 MPH faster.
All races don't end at 60 MPH.
At speed (especially from 80 MPH and up), the 2021 car will decisively pull on the 2020, realizing that the 2021 car is some 50 - 60 HP stronger (at the crank).
The differences in those two engines are...
The 2021 Supra will use the BMW M340i engine, complete with the 6 (vs. 2) external port heads, matching exhaust manifold and 10.2:1 pistons (permits more boost). But that's hardly the extend of the changes. That engines cooling system is a "split" system that includes extensive upgrades in...
ALL 2021 6 cylinder Supras will use the BMW M340i engine, including the 6 port head and manifold. But that's not the extent of the changes. That engine also includes a "split path" cooling system, thermal management module, new fuel pump with large capacity fuel system and a host of other...
That's not how chassis dynos work. You'll get about the same HP and Torque figures at the rear wheel in every tested gear on a chassis dyno because the dyno ""knows" engine RPM, tire velocity and static roller weight (inertia chassis dynos). While torque converters can create some anamolies...
Quarter mile trap speed is the bogie to watch because it's far less impacted by off the line traction limitations than 0- 60 times and quarter mile ETs.
Pete S. here in Southern New England.
I've owned lots of performance cars since my first in 1986.
My first experience with Toyota was the 1980 Corolla I purchased in 1988 as a dedicated commuter car. Just two years out of engineering school, money was tight.
The Corolla used a Hemi head 4...
To each his or her own. Personally, I wouldn't put a car of mine on a dyno until exceeding the 2,000 mile mark on the odometer. The Supra's break in procedure (owner's manual) advises exercising significant caution when remaining below the 4,500 RPM level for the first 1,200 miles of...