The Mercedes Benz AMG C 63 S Coupe 2016 1.1 mod for Grand Theft Auto 5 allows players to drive this high-performance luxury vehicle in the game. The car mod has detailed specifications, mirroring its real-world counterpart. 

The AMG C 63 S Coupe is a two-door version of the high-performance luxury car produced by Mercedes Benz. This mod provides excellent quality, detailed rendition of the car model, with features like a metallic paint surface, clear glass surfaces, fully functioning lights, and an intricately modeled interior.

Installation:
addon:
1:Copy update folder to
X:\Grand Theft Auto V\
2:Use OpenIV extract
X:\Grand Theft Auto V\update\update.rpf\common\data\dlclist.xml
then use notepad open it,add new line

dlcpacks:\c63s\

Save it and use OpenIV replace it.
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3:Use OpenIV extract
X:\Grand Theft Auto V\update\update.rpf\common\data\extratitleupdatedata.meta
then use notepad open it,add new line
dlc_c63s:/
update:/dlc_patch/c63s/
Save it and use OpenIV replace it.

Credits:
[YCA]ANSWER