Mercedes-Benz SL63 News

But we've beaten him to the prize - a sinister gunmetal grey Benz belter. The SL63 AMG is idling with intent as I arrive in the pit lane that will be the home of Formula One this weekend as the 2013 grand prix season kicks into gear.The final touches are being applied to the course but the SL has already been polished and preened for an early preview of the action. It is strong and eager as I ease onto the main straight and - very, very briefly - uncork its turbocharged V8 power.There is a strict 40km/h speed limit for me, but Doohan will be let completely off the leash when he compete in the Ultimate Speed Comparison this weekend. He is up against his racing mates David Coulthard and Casey Stoner in a contest that's intended to highlight the difference between a regular road car, a V8 Supercar and a full-on F1 car.Stoner is wheeling the V8 this time and Coulthard, a grand prix winner in Australia with McLaren, is sliding into one of last year's Red Bull rockets. "It's a bit of fun," Doohan tells me. "You're never going to beat a Formula One car, even in an AMG Mercedes."I know exactly what he means because I had two years as the road-car rabbit at Albert Park, running BMW M cars against the grand prix greyhounds. I will never forget the first time that Christian Klien blasted his BMW F1 car past me down the front straight, running more than 100km/h quicker in an explosion of noise and violence.I had always though that an M car was fast, but as I applied the brakes for Turn One at around 210km/h he calmly shifted into top gear and zipped in ahead of me trailing a huge wash of dirt and debris from the unused side of the track. It took me a while to get my breath after that one.This time, I know the SL63 and I know Albert Park, and I know the enjoyment that Doohan will be having. He might have won his five world titles on two wheels, but the 500cc tyro loves fast cars and has been an AMG ambassador for more than 10 years.What's he like as a driver? He's fast for sure, as I have seen from the passenger seat, but he's never going to score maximum style points. "The SL63 is a fantastic car.To romp it around the racetrack should be a bit of fun," Doohan says."It's not too serious, but it is still a race. I know Mercedes-Benz wants to win, and so does Red Bull Racing, and Casey. The idea is to have all three cars cross the finish line at exactly the same time. "But you don't want to put the car in the wall."This car is specially built for Doohan's drive, and weighs in with a $409,575 pricetag. When you catch your breath, that means a base price of $381,500 boosted by metallic grey paint that looks like it was peeled off a jet fighter, an AMG performance package that unleashes extra turbo torque, a panoramic sunroof and matt-black alloys that are 19 inches on the nose and 20 inches on the tail.But the most striking difference is Doohan's name on the side windows. And that's what has people staring as Carsguide noses out into ordinary Melbourne traffic in the F1 racer.I have driven the SL63 before, and absolutely loved an early-morning blast last year in southern Spain, but its a revelation on the pockmarked bitumen. It is obviously fast and firm, but also surprisingly cosseting and enjoyable. And even the seven-speed auto can slur for minimal intrusion.For me, it's a better everyday car than the Benz SLS, because it rides smoother and you can also drop the top for sunshine fun. It has more than enough performance with 395 kiloWatts and 800 Newton-metres, even though the SLS is more brutal again with 420kW, and you save big against a gullwing that is priced from at least $468,320.As we head around Albert Park and dodge the workers who are putting the final touches to the course, Doohan's words come back to me. "The only time things get a bit iffy in a road car is if the track is wet. Then you're working," he tells me.This is a bit of a surprise from a bloke who had so much brilliance on a bike. He might have ended his career in an ambulance, but Mighty Mick always rode like he was racing with the devil on his tail. And, even today, he does not play well with others.He has channeled his efforts into a booming aircraft business in jet charters, owns nightclubs and property, and has a matt-black helicopter parked in the shed at his Gold Coast spread.When he pulls on his famous helmet this weekend, he says he is looking to have some fun and a bit of a speed."You can't just stooge or dawdle around. I remember the time that Pedro de la Rosa disappeared under the rear wing of Jaffa, that CLK63 Black Series, as we were coming onto the straight. I just didn't see him," Doohan says."But my job is to be consistent every day. We want to show people the difference in speed between the three types of cars. "It should be good with DC and Casey. We'll be looking across at each other and having a bit of a laugh."This reporter is on Twitter: @paulwardgover 

...which means AMG will have its go-faster car ready for the road in 2013. Everything points to a subtle body but a muscular engine package sharing the 5.5-litre V8 turbo already installed in the SL63 AMG.

Without camouflage, the real shape emerges and its targets are obvious as the test car is driven alongside an Aston Martin Vantage Roadster and a Jaguar XK.

Fuel prices and economic uncertainty have not stopped Mercedes-Benz from rolling out a new set of sports stars at the top of its line-up. It has just tweaked the droptop SLK and SL, as well as the four-door CLS coupe, as it applies showroom pressure on BMW, Audi and Lexus rivals.The changes are mainly minor, although the latest SL looks far more aggressive in the nose (and is also $4000 to $8000 more expensive) but Benz is looking closely at the potential for turbodiesel power in the trio.According to president and CEO, Wolfgang Schrempp, the company has shown off such engines in Europe and these are now being evaluated for Australia. The company already delivers more than 20 per cent of its Australian vehicles with turbodiesels.In 2005 it unveiled an SLK 320 CDI tri-turbo concept at the Geneva Motor Show with 213kW and 630Nm and economy of 7.5 litres per 100km. At the same show it displayed a twin-turbo 4.0-litre V8 diesel SL that could charge to 100km/h in 5.8 seconds.In Europe, Mercedes also sells a CLS 320 CDI with a 165kW/540Nm V6 turbodiesel that delivers 7.6 to 8.1 litres per 100km.The newcomers arrive at a time when the luxury car business is tightening, but Mercedes-Benz Australia managing director Horst vonSanden remains bullish. He hopes the Federal Government will give some ground on the planned hike in the luxury car tax but admits it isn't easy.“There's no denying it's giving us some grief,” he says. But von Sanden, like Schrempp, is looking to turbodiesels to give Benz an edge.“We're very happy with our turbodiesel line-up, from the BClass upwards,” he says.Later this year it will introduce a 2.0-litre turbodiesel A180CDI that uses as little as 5.0 litres per 100km. The engine is already fitted to the BClass. For the time being though, the company is focused on the new petrol-engined trio.The three-model SLK range kicks off at $86,780 for the 1.8-litre SLK200 Kompressor, $112,380 for the 3.5-litre V6 SLK 350 and $164,900 for the 5.5-litre V8 SLK 55 AMG.A new six-speed manual transmission is now available in the SLK200K and Mercedes expects the take-up to be about 25per cent with the SLK 350 being the volume seller.Visually, the SLK gains a modest nip and tuck, with four different frontal treatments, tail-lights and improved interior trim.Five distinct SL models are now available. They start at $223,000 for the 232kW/360Nm V6SL 350, which rises to $468,000 for the 450kW/1000Nm V12 SL65 AMG.The three-model CLS range starts at $143,900 for the 200kW/350Nm V6 CLS 350, $182,400 for the 285kW/530Nm V8 CLS 500 and $257,800 for the 378kW/630NmV8 CLS 63 AMG.The three updates are planned to give a worthwhile sales improvement, as last year Mercedes-Benz Australia sold 570 SLKs, 501 CLSs and 104 SLs. 

The new SL roadster which arrives in July features a muscular bonnet with twin power domes.With the AMG 63 and 65 roadsters, these power domes really are packed with the goods.They feature an AMG-tuned 6.3-litre V8 engine developing 386kW of power and 630Nm of torque and a V12 6-litre bi-turbo developing 450kW and 1000Nm.The SL 63 AMG accelerates from 0-100km/h in 4.6sec, while the SL 65 AMG does it in 4.2.Mercedes-Benz Australia corporate communications manager Peter Fadeyev said all the SL models, AMG included, would be in Australian showrooms in July.Outside, the most obvious changes to the new SL range are the headlights which are now a single unit, rather than conjoined twin lights and the gill-style air outlets behind the front wheels.The AMG models add a special bonnet and spoiler lip.The SL 63 AMG comes with the new AMG Speedshift MCT 7-speed sports transmission with wet start-up clutch replacing the conventional torque converter.It has a direct connection to the powertrain, double-declutching, Race Start functions and four drive modes (comfort, sport, sport plus and manual).Power in the SL 65 AMG is transferred by the AMG Speedshift five-speed automatic transmission with three drive modes and a multi-disc limited-slip differential with a lock factor of up to 30 per cent for better traction.Both models also get the AMG suspension and brake treatment with options up to barbecue-plate-sized 390mm discs.They both sit on 19-inch alloys with wide 255/35 R 19 (front) and 285/30 R 19 rubber.No prices are available yet, but the two new models will replace the current SL 55 AMG ($376,000) and SL 65 AMG ($457,900).