What a restoration! Twrio's Morris Traveller back on the road.
'We stripped her down, put in a new floor and a new engine. In fact, nearly everything in the car is new and there's not much left to do on her.'
This isn't the first car that John and the crew have restored but he says it might well be the last.
'This was really hard work,' he said. 'We started on Boxing Day last year.
'I went out into the shed and, from then on, every spare minute we had was spent working on the car. I'm in no hurry to take on a project like this again, although if I found an old Mini Cooper in need of restoration, I could be tempted!'
Proceeds from the live auction will go towards S4C's charity appeal for 2005, in aid of Barnardo's Cymru.
Twrio presenter and collector Jim Lloyd believes this will be a popular item and is amazed by the transformation in the Morris Traveller.
'I can still see the old car, above Parrog beach in Pembrokeshire. She was rusty with grass growing through the cracks in the floor. The restoration work on this car has been done with real care and attention and as the woodwork is new, it really stands out' said Jim.
'These cars are real collector's pieces. Someone might wish to buy this to exhibit at shows but they could just as easily drive it around town, and I'm looking forward to seeing the bids coming in on Saturday night.'
Also under the hammer on Saturday evening will be the tandem, which carried Angharad Mair and her fellow celebrities on an epic journey of Wales to raise money for Barnardo's earlier this year, and glass decanters dating back to 1790.
Those wishing to bid for any of these items are asked to telephone 0871 230 0032 or join the audience at the National Library of Wales. The telephone lines will be open after 5.30pm on Saturday evening. Bids can also be registered on www.s4c.co.uk/twrio.
Twrio is on S4C tomorrow at 8.15pm with English subtitles available on Teletext 888