19th April 2017 We all forget that in this day of modern clean diesel engines that smoke (or 'clag') emitting from the exhaust of a HST powercar was once a perfectly common sight. In the modern age it's very much a sign that GWR powercar No.43146 may well be taking a visit to Laira depot very shortly for some attention to its MTU power unit. No.43146 is pictured departing Taunton working the 1U03 07:00 London Paddington - Paignton service on Wednesday 19th April 2017. (Photo: Thomas Courtney)