* A red bus Widnes bus is heading in.
* A green Crosville Bristol Lowdekker will make an appearance.
* Buses will gather on the field at Glyndyfrdwy for inspection.
An array of classic road vehicles will motor into Llangollen this weekend for the Classic Transport Weekend being hosted by the railway.
Working in conjunction with the St Helens-based North West Museum of Road Transport, Llangollen Railway presents another two-day event on Saturday and Sunday (August 25 and 26) when the gleaming vehicles will gather for display in the field behind the station in Glyndyfrdwy.
Omnibuses from the former fleets of Widnes, Chester and Crosville are expected to be in attendance and will offer a free classic bus service running between Glyndyfrdwy and Corwen.
Owners of other preserved classic commercial vehicles are invited to attend to swell the numbers on display.
The railway will operate an intensive train service between Llangollen and Carrog in support of the event with steam, diesel and railcars.
At Carrog a railcar shuttle service is expected to offer trips down the line of the new extension towards Plas Bonwm to show what has been achieved so far.
George Jones, for Llangollen Railway, said: “Using the free Rail Replacement Bus Service, this occasion allows visitors to sample the journey along the A5 road to Corwen.
“Travelling on the top deck of the classic buses will offer an unusual view of the route of the old trackbed beyond Carrog and the work that is needed to allow for further relaying of the rails and sleepers.
“This is a travel opportunity for passengers to visit Corwen town centre and see the site of the railway’s ultimate destination.
“In the town’s car park an exhibition featuring the exciting Rail Extension project will provide information about progress and future plans for the Corwen terminus.”
On Bank Holiday Monday (August 27) the railway operates its peak timetable with a supplementary railcar service to enhance hourly steam departures from Llangollen to Carrog.
Further details at www.llangollen-railway.co.uk