Aston Martin’s $1.6m Valhalla Spider: Expert Review

How many firsts do you need? When the Aston Martin Valhalla finally arrived earlier this year it became the venerable British marque’s first production, mid-engined supercar and its first plug-in hybrid, capable not only of a stratospheric 217mph but also of around nine miles of silent, electric-only running at rather lower speeds. Because the two electric motors powering the front wheels could propel it on their own, it also became, temporarily, Aston Martin’s…