911T vs Emira

[seriously]

Speaking of polar moment the cayman is even more mid-engined that the emira. The emira while technically mid-engine has a lot of weight over the rear axel. Theoretically this is ideal for launching the car. No wonder the i4 with DCT posts such strong 0-60 times.

911s also launch really well due to all the weight over the rear axel.

 

[Ohio Enthusiast]

The closer to the center more weight exists, the more neutral the car becomes whenever you want to rotate it (i.e. turn under acceleration or braking). In the 911's case, the weight is more unevenly distributed and further away from the center

You're explaining fore-aft center of gravity position (better known as weight distribution) and polar moment of inertia. These are completely unrelated to center of gravity height, which was what you claimed the Emira has much lower one. Also, both the 911 and the Emira share a similar weight distribution (~40/60), so that's unrelated as well. The only difference between the two is the polar moment of inertia, which will explain the difference in handling between cars in different engine configuration, even if their weight distribution and center of gravity height are the same (front, mid and rear engine). (neglecting other things like suspension type, curb weight and chassis tuning).

If you have center of gravity height numbers for either car, I'm sure we'd love to see them as they are extremely rarely published by manufacturers and rarely measured by anyone else.

(rear engine sits on top of the rear axle). This is why it's tail happy (in general).

The engine is not on top of the rear axle, but behind it and only slightly higher than the hubs (as opposed to the Emira and other transverse mid engine cars where the engine does indeed seat on top of the rear axle). The tail-happiness of a 911 is mostly due to the high polar moment of inertia with the heavy part being in the rear (the same thing that promotes understeer in front engine cars - high polar moment of inertia with the heavy part in the front).

911 (991):

Emira:

 

[NorCalEmira]

Fun fact. The 911 and Emira have the same weight distribution (approx 60% rear, 40% front).
If you want something close to 50:50 the Cayman is near perfect.

The difference from the 911 is that the Emira puts that weight ahead of the rear axle.

 

[F1 SML8R]

I was paraphrasing for purposes of simplicity. However, I like that you attached the diagram which further reaffirms my point. the engine is further away from the center and to your point behind the axle making it exceptionally easy to getting the tail to slip. My whole point is getting more weight towards the center is better. The emira compared to my old Carrera T accomplishes this better than the T.