Or read the article first...
If I lived inside the M25, and used a car to commute, and someone offered me a car that was limited to speed limits when inside the M25 i would probably ignore it, and walk on by.
If it was cheaper, either through initial subsidy, cheap/free tax, cheap insurance and congestion charge exempt i would definately be interested.
I'd be more interested if it only limited me when in 30 or 40 mph areas, but didn't bother me on a dual carriageway/motorway.
I'd be more interested if I knew it couldn't "phone home", or at least I couldn't be forced to let it...
I'd be really interested if it made the car fly /invisible / had machine guns in the indicators... oh, sorry!
Paris, cos i'd be most interested if they could trial it there first!