Apex domains cannot have CNAME records.
Question and response
Question
dig finlaymotorsports.com. NS
Answer
finlaymotorsports.com. 5 NS ns-1245.awsdns-27.org.
finlaymotorsports.com. 5 NS ns-90.awsdns-11.com.
finlaymotorsports.com. 5 NS ns-998.awsdns-60.net.
finlaymotorsports.com. 5 NS ns-1778.awsdns-30.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0