Transmission, 5 speed manual

Years 2017, 2020 Models 1

Documented applications

Spark — M400 (2016–2022)

2017 Confirmed

in the equipment group of every manual model (1SA, 1SC, 1SE); with the FX2 3.91 axle; 2017 from GM Authority's 2017 Spark page, which names MR7 as standard (the 2017 guide prints it only as equipment-group contents (the 'Included in Equipment Group' mark only) of groups 1SA, 1SC and 1SE, p.21); 2018 and 2019 are left out: those guides print it only as equipment-group contents (the 'Included in Equipment Group' mark only) of groups 1SA, 1SC, 1SG and 1SE (2018 guide p.8, p.29; 2019 guide p.29)
2020 Single-source

GM Authority 2020 Spark page (does not credit GM), with the 3.91 axle

This page aggregates every documented appearance of MR7 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.