the base coupe doesn't have the following:

-No Cupholder
-No Homelink
-No "Crossfire" nameplated stainless steel door sill plates
-No storage net between both front seats
-No storage nets behind both front seats mounted on the bulkhead at the bottom
-No silver cigarette lighter
-No Tire Pressure Monitor
-No Aluminum rubber studded pedals
-No Power Seats
-Different seats altogether with adjustable headrests
-No Leather Seats
-No Heated Seats
-No 6 speaker 240 watt Infinity Modulus radio (Base just has a 4 speaker stereo with black ***** and NO AMPLIFIER)
-No Fog Lights
-No Silver trimmed speaker grilles
-No Satin Silver Finish exterior windshield frame, side fender vents and door handles (all black on Base)
-No Chrome finish on exhaust pipe tips
-No Automatic Transmission Option
-No Color Option other than BLACK CLEARCOAT
-No Interior Color Option other than BLACK CLOTH
-No Gas Strut on Glovebox door (This Strut Available on the Limited creates a slow opening door rather than just dropping open)
-No Heated Exterior Mirrors
-No Cabin Air Filtration System (Base just has a simple recirculation feature)
-And usually comes standard with the All Season Performance Conti's
-No Floormats
-No Touring Gear

However, the Base coupe does have a silver engine cover at least mine did.