Yes...stock for stock, SHO is faster then SSEi and Aurora.
Modded an SSEi can be faster then an SHO.
An Aurora has a 4.0L V8 putting down 250HP at the crank with 260 tq, but it has a VERY restricted exhuast. Open it up a bit and it can keep up with an SSEi (stock) if you mod a Bonnie with an SC its all over
As for toys it cannot be beat, oh and if you go with the Aurora, take a look at the Autobahn performance package, otherwise its an old fart car....lots toys, but you want some go
Diamond White Classic Aurora - Back on the Road
Galaxy Silver Grand Prix GTP CompG - Soon to be mothballed