$2,500 lease cash.
58% residual for 15k miles. 60% for 12k, 61% for 10k. Same no matter the trim.
And the residual is inflated artificially ~10% resulting in a lower lease payment, which is where GM is giving the rest of the $5k.
Explaining in advance before the "where's the rest of MY (not) $7.5k tax credit?!" crowd shows up.