Welsh motorists drove off in 59,594 new cars last year, a 24.72% drop on 2019.
A Vauxhall spokesman said, “We are delighted that the Vauxhall Corsa was Wales’ most popular model in 2020.
“This is proof of the Corsa’s enduring appeal over many generations, but also of the latest model’s low running costs, practicality and choice of petrol, diesel and fully-electric power. The Welsh road network is hugely varied, but we’re confident that there’s now a Corsa to suit every driving requirement.”