Highlights

High-specification 166 in Odyssey Blue metallic with Momo leather
Very well-maintained with annual servicing by Alfa specialists
Only three registered keepers
Cambelt, water pump, auxiliary belt and brake hoses replaced in April 2024
Serviced in 2025 by Alfa Workshop in Royston with new battery fitted
MOT valid until November 2026 and no advisories

The Appeal

After the success of the 164, Alfa was seriously gunning for BMW and Mercedes. The 166 was the car it built to do that, one with the handsome lines of the 156, the verve of the 164 and the Teutonic build quality of those established rivals.

Despite delivering on all three, mostly notable with the sort of heavy door thunk not typical of previous Alfas, the 166 never quite hit its sales targets. That makes any survivor exceptionally rare but well worth seeking out, especially the Busso-engined 3L V6 model that we have here. It is a high-specification Lusso with the versatile Sportronic box that offers sequential semi-automatic shift alongside a full auto mode.

Featuring attractive Odyssey Blue metallic paint with Momo leather, it is a very well-kept car that has been impeccably maintained in recent years by Alfa specialists like Monza Sport Tuning and Alfa Workshop in Royston. The thick history file shows annual servicing in recent years by both specialists, irrespective of mileage. The cambelt was changed in 2018 and again in 2024, and the car was serviced by Alfa Workshop in October 2025. The current MOT runs to November 2026 with no advisories.

The current keeper acquired the car in 2024 and has used it for European trips, where it has proved utterly reliable. As an antidote to more common V6-engined executive saloons, this 166 is compelling. It has been maintained properly and looks ready to enjoy.

The vendor says:

“The Alfa Romeo 166 is the nicest saloon; it drives in a way like no other vehicle. The Busso engine sounds like no other; it can cruise the motorways and still accelerate like no other car of its class for the time and still impresses today. It's such a beautiful looking car; it stands out among other saloons of its class and has a side profile that most modern cars cannot replicate or match. I adore this vehicle, and with the love and commitment to maintaining and looking after this car by previous owners and myself, I hope it sells to another collector and someone who truly will keep it at it's best for many years to come.”

History and Paperwork

First registered 1st November 2001 in the United Kingdom
Two former registered keepers
Current keeper since November 2024
Large history file of servicing and MOT records from new
Vendor describes history file as one of the most comprehensive they have seen
Two keys and security codes present
Services and maintenance reportedly completed on schedule throughout vehicle's life
Previous services carried out by Monza Sport Tuning
Latest service in October 2025 by Alfa Workshop in Royston, including new battery
Cambelt, water pump, auxiliary belt, and brake hoses replaced in April 2024
Driven extensively across Europe on several trips without issue
MOT valid until 8th November 2026 with no advisories
Showing 112,408 miles, which is not verified, but is supported by MOT and service records
Factory handbooks and wallet

Service history (further details in photos):