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      02-28-2011, 08:59 AM   #1
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AC Schnitzer releases full details on its Z4 based "99d"

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AC Schnitzer releases full details on its Z4 based "99d"
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The AC Schnitzer 99d generates only 99g/km CO2 – that's less than any standard BMW vehicle available at present.

And despite this, driving pleasure is guaranteed thanks to 190 HP / 140 kW. The 99d accelerates from 0 - 100 in an electrifying 6.9 s and has a top speed of 235 km/h – a vehicle with all the sporting genes, in fact a true AC Schnitzer. And with a fuel consumption of just 3.8 litres diesel per 100 km.

So how does this Concept Car by AC Schnitzer manage to achieve such low figures?
AC Schnitzer calls the combination of features Efficient Performance.
"Pleasure is the driving force!“ That applies not only to the BMW engineers but also - and in particular - to the tuning specialists at AC Schnitzer.

Secret 1: Diesel engine and matching drive train
A diesel engine in a BMW Z4, and the most efficient currently available from BMW. It comes from the 320d EfficientDynamics Edition. And of course now the power has been optimised by the Aachen specialists to 190 HP and 420 Nm torque (standard 320d EfficientDynamics Edition: 163 HP).

Secret 2: 230 kg weight saving
The elegant lightweight coup demonstrates what is technically possible today. The energy source for example is a lightweight lithium ion battery instead of the usual lead accumulator. The use of further lightweight materials such as carbon, magnesium and titanium has achieved further substantial savings in the interior equipment. So it's lighter than any current standard BMW.

Secret 3: Weight reduction in unsprung mass
35 kg less weight in the parts directly connected to the wheels, such as wheels, tyres and brakes, leads to a perceptible gain in agility and driving pleasure. The latest forging techniques using materials from the aerospace industry guarantee strength and an unbeatable weight saving. For example, the AC Schnitzer lightweight 4-pot high performance brake system with retraction system for the front axle, and the lightweight brake discs on the front and rear axles, ensure the shortest braking distances.
Or the Type VIII one-piece high-strength forged rims used on the AC Schnitzer 99d. These weigh in at just 7.9 kg per wheel and are connected to the vehicle with titanium wheel bolts. Experts say that measures to reduce the unsprung mass have a benefit of up to four times the weight saving. This means that in terms of agility, the AC Schnitzer 99d feels like a vehicle which overall weighs 335 kg less.

Secret 4: Special Eco-tyres from Continental
The Continental BLUECO tyres size 225/35*19 were a special concept development in conjunction with AC Schnitzer. These tyres help optimise the rolling resistance. The design is a refinement of the Conti Sport Contact 5P, and allows sporting driving thanks to its high cornering stability and ZR speed rating of over 240 km/h.

Secret 5: Adaptation of EfficientDynamics
Behind the BMW EfficientDynamics concept lies a technology package of intelligent measures which significantly reduce fuel consumption and emissions. These technologies from the BMW 320d were integrated into the AC Schnitzer 99d: Automatic start-stop, brake energy recuperation, gear shift display, low-friction lubricants and active aerodynamics.

Secret 6: Improved aerodynamics
The bodywork lowered by 30 mm, in conjunction with several AC Schnitzer carbon aerodynamic components, reduces drag. The AC Schnitzer racing suspension with adjustable dampers reduces the residual spring travel to a sporting but still comfortable level, especially when driving at low speeds.

Secret 7: Reduced friction
Special ceramic wheel bearings achieve a decisive reduction in friction resistance. In addition, optimised low-friction lubricants minimise friction. The high performance brake system is fitted with a special PFC Retraction System which, after each brake process, retracts the brake pads by 0.1 mm from the brake discs. The wheels of the AC Schnitzer 99d then turn much more easily.

Secret 8: Driving pleasure
Individuality, exclusivity, ultramodern lightweight construction and over 20 years of experience in refinement have led in the AC Schnitzer 99d to a vehicle which perfectly combines efficient fuel consumption and driving pleasure: Efficient Performance by AC Schnitzer.
Naturally all safety elements are retained such as ABS, airbags and ESP. The multimedia world too is not lacking thanks to the Apple iPhone4 integrated into the vehicle. This gives access to all data from the on-board computer. So the actual fuel consumption, or for example the function of the particle filter can be checked. Music, telephone, navigation, handsfree or internet complete the overall experience in the AC Schnitzer 99d.


The AC Schnitzer 99d is a concept car not for sale, which was developed as a technology platform. In the form shown here, the vehicle would cost € 149,000.00.

The conversions in the fields of brakes, suspension, bodywork, interior and wheels are part of the accessory range for the BMW Z4 model range. All are TV-tested and available from BMW dealers.


AC Schnitzer 99d Data Sheet
Base vehicle: BMW Z4 SDrive 23i (E89)
Efficient Performance:
Conversion to BMW 320d EfficientDynamics Edition + AC Schnitzer performance upgrade
Power (kW/HP): 140 / 190 (4000RPM)
Max. torque (Nm): 420 (@1900-2250RPM)
V max (km/h) 235
0 - 100 km/h (s) 6.9
CO2 emission (g/km) 99

Exhaust: AC Schnitzer lightweight silencer system with
chromed tailpipe trim 99d (central)

Brakes: AC Schnitzer lightweight 4-pot high performance brake system
with PFC retraction system for front axle
AC Schnitzer lightweight brake discs for front and rear axle

Suspension: AC Schnitzer racing suspension, height-adjustable

Bodywork: AC Schnitzer carbon front spoiler
AC Schnitzer front grille, anodized matt silver
AC Schnitzer carbon sport wings, left/right inc. Aluline set
AC Schnitzer bonnet vents (note country specification)
AC Schnitzer rear spoiler, 2-piece
AC Schnitzer carbon rear skirt insert
AC Schnitzer carbon roof
AC Schnitzer carbon boot lid

Steering: AC Schnitzer sports steering wheel

Interior: Interior trim, painted
Carbon racing seats 99d logo
AC Schnitzer gear knob
AC Schnitzer aluminium foot rests and pedals
AC Schnitzer foot mats, velours with 99d logo

Wheels: AC Schnitzer Type VIII lightweight forged rims BiColor
8.5J x 19" with tyres 225/35 ZR 19
Conti Sport Contact 5P BLUECO
inc. magnesium spacers and titanium wheel bolts


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      02-28-2011, 11:40 AM   #2
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I want the rims...
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      02-28-2011, 03:13 PM   #3
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Wow, how the heck did they shed off over 335kg?!

Did they even remove the stereo?
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      02-28-2011, 04:27 PM   #4
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Quote:
Originally Posted by OrangeOne View Post
Wow, how the heck did they shed off over 335kg?!

Did they even remove the stereo?
I think you are right about the radio ... looks like a bunch of iPhones instead, then there are the rims much lighter and of course no retractable roof hardware ... all adds up to less weight.

It's not for sale anyway ... they are just teasing us

Have to check into them there tires they are properly none-RFT ... if so less weight as well.
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      02-28-2011, 05:12 PM   #5
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Talk about fuel efficiency in 2 psg car...
I mean diesel in a sports car? seriously?
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      02-28-2011, 07:00 PM   #6
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Quote:
Originally Posted by OrangeOne View Post
Wow, how the heck did they shed off over 335kg?!

"feels like a vehicle which overall weighs 335 kg less."
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      02-28-2011, 09:59 PM   #7
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No, thank you.

When I drive my Z4:
  • I want to hear a wailing 6 cylinder, not a glorified tractor engine.
  • I don't want to smell diesel exhaust when I sit top down at a red light.
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      02-28-2011, 10:04 PM   #8
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Quote:
Originally Posted by OrangeOne View Post
Wow, how the heck did they shed off over 335kg?!

Did they even remove the stereo?
They main things they claim as the biggest weight savers are: carbon fiber roof and trunk, wheels, wheel bolts, and seats.
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      02-28-2011, 11:11 PM   #9
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The retractable roof is also gone.
So sad
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      02-28-2011, 11:12 PM   #10
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Can I just buy the front quarter panels? They look fantastic.
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      03-01-2011, 12:44 AM   #11
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Digging the body kit. Wish they had a slick body kit like this for 335i.
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      03-01-2011, 02:16 AM   #12
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Anyone digging the exos too? :P. For some reason I am actually liking it.
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      03-01-2011, 04:59 AM   #13
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also like the front spoiler...will dig their website to see if i can find something similar.
Overall the concept is interesting, IMHO is just to show the potential...not so close to reality, even cost is outrageous..!
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      03-01-2011, 07:12 AM   #14
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Quote:
Originally Posted by cdeslandes View Post
No, thank you.

When I drive my Z4:
  • I want to hear a wailing 6 cylinder, not a glorified tractor engine.
  • I don't want to smell diesel exhaust when I sit top down at a red light.
This is exactly why BMW is making commercials in the States for Diesels. For your information, Diesels don't smell anymore! And they also do not spit out big black clouds out of their exhausts!
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      03-01-2011, 11:33 AM   #15
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149,000 euros?

That's a lot of money to save a few bucks on fuel. But I guess it pays for itself in 200 years.
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      03-01-2011, 02:37 PM   #16
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secret #9: make the car look like a tennis ball threw up on it.
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      03-01-2011, 06:24 PM   #17
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those are the 1st acs wheels that i like
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      03-02-2011, 12:09 PM   #18
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Nasty.
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