Assuming your Corsa has the 1398cc non-turbocharged engine rather than the 1364cc turbocharged unit, its maximum braked towing capacity is 800kg, which would make it unsuitable to tow your trailer. However, the 1.4T version of this Corsa generation can tow up between 1150kg and 1200kg depending on the specification. If you need an alternative we would suggest looking at cars like the Audi A4 Avant, Skoda Octavia Estate and Mazda 6 Tourer, both of which can be had with petrol or diesel engines and good towing capability.