Deletion of Sigma Motors

Comment: Agree with nom, none of the references are good. I've checked for additional good sources but I am unable to locate any |significant coverage with |in-depth information on the company and containing |independent content, fails GNG/
Stance: delete
Cited policy: Wikipedia:Notability (WP:SIGCOV||WP:CORPDEPTH||WP:ORGIND||WP:NCORP)

Comment: per . This article can be improved
Stance: keep
Cited policy: Wikipedia:The Heymann Standard (WP:HEY)

Comment: Passes  per the following sources including two peer reviewed journal articles
Stance: keep
Cited policy: Wikipedia:Notability (WP:SIGCOV)