VerdictIt’s easy to question the sanity of a 717bhp, two tonne-plus SUV, but viewed purely as a technical achievement, what the Aston Martin DBX S is capable of is nothing short of astounding. Advertisement - Article continues belowThe name ‘707’ certainly has a nice ring to it, so it seemed a fitting choice for the range-topping version of the Aston Martin DBX. When that number is taken from a car’s metric horsepower, it’s a pretty wild name to have, too. But now, the 707 has been upstaged by this: the new DBX S. Less dramatic sounding, sure, but the S carries more weight in the marque’s history, sitting on a range of more sporting models since the Fifties. In this case, it also carries more power and - if you tick the right option boxes - less weight than the former pinnacle of Aston’s SUV, too.