First, some models:
Base:
Black cloth seats
Start button on steering wheel
Leather steering wheel
Front seats with 6-way manual adjustment
3.5" TFT display cluster
16" alloys
Aluminium brake callipers
Halogen DRLs
Fog lights
Rear LED lights
Chrome exhaust tips
Alfa Connect 6.5" (touch, radio, MP3, aux-in, Bluetooth, 8 speakers, rotary pad)
Alfa DNA
Autonomous emergency brake with pedestrian recognition
Start/stop
Forward collision warning
Integrated brake system
Tyre inflation kit
Dual-zone climate control
Lane departure warning
Cruise control
Light and rain sensors
Electrical handbrake
The Super model changes from base:
Cloth/leather seats (3 different colour variants)
Aluminium kick plate
Two-tone dashboard and door panels
17" alloys
Dual chrome exhaust tips on 180PS diesel
Alfa Connect as above, with added SD card, voice control and navigation
Rear parking sensors
The Business model changes from base:
Electric folding mirrors
Alfa Connect as per Sport
Rear parking sensors
The Business Sport model changes from Business:
Cloth/leather seats
Leather sports steering wheel
Sports pedals and aluminium foot rest
Aluminium finish to centre console
17" alloys
Bi-Xenon headlights
Black brake callipers
Front/rear parking sensors
Rear camera
The Quadrifologio model:
Sports seats in leather and alcantara
Front seats with 6-way manual adjustment
Sports leather steering wheel with start button and keyless-go
7" TFT display
Special aluminium kick plate
Carbon inserts on dashboard, door panels and central tunnel
19" alloys
Electro-chromic and folding exterior mirrors
Bi-Xenon headlights with AFS and washers
LED DRLs
4 exhausts
Black aluminium brake callipers
Special bumpers with front grille
Rear diffuser
Crystal black outer frame
Underbody blanket
Quadrifoglio badge
Alfa Connect 8.8" (other features as Super/Business)
Front/rear parking sensors
Rear camera
Cruise control
Dual-zone climate control with rear vents
Light/rain sensors
Electric handbrake
Active aerodynamics
Alfa DNA Pro
Alfa Chassis Domain Control (CDC)
Alfa Active Suspension
Active torque vectoring
Forward collision warning
Autonomous emergency brake with pedestrian recognition
Blind spot monitoring with rear cross-path detection
Integrated braking system
Tyre inflation kit
There are also some "launch" editions for Business and Business Sport with different alloys and the Convenience Pack; the Business Sport adds gear change levers to the steering wheel.