I had a not dissimilar experience in a Lotus at Castle Combe. Much the most important factor in cornering on a smooth track surface is the tyres - I found that an early Chapman Elite on modern rubber was no slower round corners than my then current Elise. Once the surface becomes bumpy then suspension design starts to make a bigger difference.

What are the actual weights of the Evora and Aero - as opposed to manufacturer claimed in different states. I would expect GRP bodywork to be heavier than ally but a BMW V8 to be heavier than a Toyota V6. So I would have thought the real world weights to be similar.