With power mirrors and no rear lip or spoiler, it's unlikely to be an R Package.
You can easily check the package type for yourself through Mazda's website.
Login to https://www.mymazda.com - create an account if you don't already have one.
Add a vehicle under "My Profile"
Enter the necessary information, including the VIN, and you'll get something like this:
1994 MX-5 Miata BS/R
Mileage:100,000
VIN:JM1NA3537R0512925
Transmission:5-SPEED MAN OD TRANS 2W RWD
Engine:1.8L DOHC 4-CYL ENG
Exterior:LAGUNA BLUE METALLIC
Interior:BLACK