Mostly true. Given that the DBS is pretty much a DB9 in a different body anyhow, you could get away with that.
The cars were built by the lads in the Gaydon Prototype workshop, which also sired the Rapide, the N24 and also (with some crazy SVO help) the Vantage RS.
Before we go back to Bond, a bit more AM trivia: the two original 'AMV8' showcars that previewed the Vantage were shortened DB7 Vantages. This meant that they had the 420hp V12 under the hood, not a V8 and so are much more closely related to the forthcoming Vantage RS. This also meant that A) the firewalls were rather thin, B) they got a bit warm in the cabin, C) they went like stink, and D) they were more tail happy than a terrier in a butchers.
Right, Bond related AM trivia: twenty stock production DBS have been manufactured for the film, all left hand drive. They are not quite the same colour as the famous 'roll' car, and I personally am not certain the use to which all the cars have been put. Some of the cars have had their airbags carefully removed after sale, ergo, stunts-are-us. Daniel Craig has been doing a lot of stunt driving practice in a variety of rear drive machinery from the DBS right down to the rather more prosaic late-90s BMW 3-series.
The DBS is almost guaranteed more screen prescence than in Casion Royale. AM fans need not be disappointed, there is at least one heavy-duty full-on chase scene.
QoS is approximately halfway through filming, it started with lots of heavy dialogue scenes just to get the actors into the character mindset (apparently, it's unusual to start with the big scripty stuff first.) Filming is currently due to finish mid-summer. That's a lot of filming.
I was always a bit skeptical about Daniel Craig as Bond... but judging by what I've seen and heard (direct from the set) I think this film will be an absolute corker.