G87 with manual transmission and carbon roof and buckets is still only a 29.5 lb reduction over the non-carbon option. 7.5 lbs reduction for the roof and 11 lbs per carbon seat. That still puts it at roughly 3,787 lbs.
My manual MkV Supra is 3317 lbs with a full tank.
The S58 in the G87 is...
Not really?
G87 M2 weighs 3,817 lbs.
Supra MkV weighs anywhere between 3,300 to 3,400 lbs (Mine was weighed right at 3,317 lbs).
Due to the higher weight alone, the G87's increase in horsepower over the MkV Supra is almost entirely negated if we are talking about straight line speed.
Then...
My 2023 A91-MT came with a 12-speaker audio system instead of the 8 speaker audio system from 2020-2022 and it also came with the GR branded strut bar for the engine bay.