A fleet of about 24 classic Jaguars will drive from Brecon to Carmarthen and Pendine on Saturday to recreate a trip first made in 1957.
It marks 60 years since the prototype of the Jaguar E-Type was test driven in Wales before going into production.
The car was described by motor racing driver Enzo Ferrari as “the most beautiful car ever made”.
It has been credited with “defining the spirit of the 1960s” and was driven by Frank Sinatra and Princess Grace.
The fleet will be flagged off from the Castle Hotel in Brecon by the mayor, Ieuan Williams, and school children.
It will stop in Carmarthen and the Pendine Museum of Speed before travelling back to Brecon.
It is estimated about 72,000 E-Types were built between 1961 and 1975.
In January 2017, a rare example sold for almost £6m.
A pilot bus service offering free weekend travel to passengers across Wales has been launched by the Welsh Government.
It covers buses using the TrawsCymru network across Wales. Economy and Infrastructure Secretary Ken Skates called it a “ground-breaking” project designed to boost visitors.
It begins on Saturday and will run every weekend until May 2018.
A budget of up to £1m has been set aside for the initiative.
“From Bangor to Cardiff, Fishguard to Wrexham, I hope to see this scheme provide the perfect excuse for people from across Wales and beyond to jump on the bus and spend their weekends enjoying the diverse beauty of Wales,” Mr Skates said.
“The free service is subject to availability, but we have also provided additional funding to local authorities to ensure operators are able to deploy more buses to meet increased demand if necessary,” Mr Skates added.
Which services are included?
The pilot applies to all buses on the TrawsCymru network:
- TrawsCymru T1 Aberystwyth – Lampeter – Carmarthen (operates seven days per week)
- TrawsCymru T1C Aberystwyth – Lampeter – Carmarthen – Swansea – Cardiff (daily except Sundays)
- TrawsCymru T2 Bangor – Porthmadog – Dolgellau – Abersytwyth (operates daily)
- TrawsCymru T3 Wrexham – Llangollen – Dolgellau – Barmouth (operates daily
- TrawsCymru T4 Newtown – Brecon – Merthyr Tydfil – Pontypridd – Cardiff (operates daily)
- TrawsCymru T5 Aberystwyth – New Quay – Cardigan – Fishguard – Haverfordwest (operates daily – Sundays during summer only)
- TrawsCymru T6 Brecon – Ystradgynlais – Neath – Swansea (operates daily)
- Cardiff Airport Express T9 services (operates throughout the day – seven days a week)
Arrangements are also in place to reimburse operators of other bus services if they experience any reduction of passengers as a result of the pilot, although the Welsh Government is “optimistic” it will have the opposite effect.
It is hoped the scheme will act as a “catalyst for bus travel in Wales”, boosting passenger numbers and the wider use of TrawsCymru routes.
The Welsh Government said it would use the pilot to get a better understanding of how such reductions affect wider demand for public transport before deciding on its future beyond May 2018.