Grant, much appreciate the welcome and the clarification re: GPF specs.

I live in San Francisco.

Probably like many on rennteam, I view any weight not deployed for passive safety to be the enemy of performance, stability, precision, active safety....and, ultimately, driving enjoyment.

Hopefully, weight-saving advances like the Speedster exhaust, carbon fiber roofs, carbon fiber or magnesium wheels, etc will proliferate, such that these technologies are rapidly iterated and costs can decrease via scale efficiencies.

My sense is Porsche's scale of 911 production and the possible immense profitability of these weight-saving options may represent a major potential advantage over other, competing, but lower-volume, manufacturers in coming years, as they all must engineer profitable products vs these difficult regulations to survive.