The Griffith's cabin is a sumptuous place to be, and is not as quirky as some later TVR models'. Almost all with have hard-wearing leather seats, though some earlier cars may have a mix of fabric and hide. Air conditioning is a desirable option, but should be checked for effectiveness or budget for a re-gas.
The driving position is excellent and offers space for taller drivers, while the reclining seats have plenty of support. Simple, individual round dials are easy to read, but make sure all of the gauges work as it's usually smaller electrical problems that irk on TVRs of this age.
Seat belts and carpets are good indicators of a Griffith's overall condition. Look for water damage from leaky roofs and general wear that tallies with the mileage. Also study the walnut veneered dash for any lifting varnish, and try the boot electric boot release.
Another clue as to a Griffith's age is early cars had a speedo and rev counter with needles that sweep from right to left, while later cars changed to the more conventional left-right sweep. Later cars also gained aluminium surrounds for the dials.