It’s a rather difficult choice because while the AMR is the absolute pinnacle of the DB11 range and has much more power than the V8, the latter being lighter has lots more dynamic advantage and is in fact the better driver’s car of the two. The power band in the V8 is much more usable. If sheerhorsepower, top speed and exclusivity is your priority, go for the DB11 AMR but for everything else it would be V8 and you would save some cash too.