Eight Maserati 250Fs were entered in the 'Maserati UK Race for Pre 1961 Grand Prix Cars' at the Coys International Historic Festival at Silverstone in July 2000, and here are photographs of two of them.
This is the 1957 car of Peter Neumark and is chassis number 2527. A note in the programme of the SeeRed meeting at Donington Park in September 2005 says this about the car:
First of the Lightweight 'T2' 1957 factory team cars with smaller-gauge chassis tubing. Later sold to Australian motorcycle rider Ken Kavanagh. In 1964 the Hon Patrick Lindsay started racing it in UK. After huge accident at Thruxton chicane when throttle jammed open, the chassis was replaced. Now owned and raced by Peter Neumark.
This is one of Cameron Millar's recreations, owned by Peter Gooch, but I don't know its chassis number. It's being driven out of the pit lane here on a demonstration run by Maria Teresa de Filippis, the first woman to race in Formula 1. Sadly, Maria died in January this year at the age of 89.
(NB: I've now been told it's chassis number CM6)