2003 AC Schnitzer Topster

2003 AC Schnitzer Topster

2003 AC Schnitzer Topster Tradition demands it - every (2) years, on the International Motor Show in Frankfurt, as well as the many inventions inside the AC Schnitzer special accessories variety, a totally unique vehicle is offered. And 2003 is no exception: The Concept Car, the AC Schnitzer V8 TOPSTER.

The foundation is the BMW Z4 three.0i, wherein but "no stone is left unturned". The most placing optical feature is the enclosed bodywork, now 13 cm wider, in colors orange / cream.

The life-giving organ which became evolved in document time as a one-off special in near collaboration with the BMW works team Schnitzer Freilassing, is the upgraded overall performance version of the 4941 cc 8 cylinder, 4-valve engine from the BMW M5. In conjunction with our generation companion, the engineers have ready the V8 TOPSTER with special consumption and exhaust camshafts. The cylinder heads have also been first-class-machined, the compression raised to 11.5 : 1 and the manage unit reprogrammed. To improve the exhaust gasoline float, an environmentally-friendly unique metal high performance exhaust system has been advanced with twin chromed racing tailpipe trims in proper and left combination.

In contrast with the M5, the strength plant has needed to be re-placed within the engine bay of the Z4 basic automobile and the whole oil circuit optimised, so it became essential to alter the oil sump and oil pump. Finally, the air go with the flow became progressed. By method of new intake pipes and a pair of air filter containers, the complete consumption tract can be optimised. These modifications have together resulted in the following performance figures:

• Power: 331 kW / 450 HP
• Maximum torque: 520 Nm 
• 0 - a hundred km/h four,five seconds
• Top velocity: 305 km/h

These figures are not simplest the end result of the brand new engine however additionally a really perfect aggregate of high engine strength and optimally adapted energy transmission. To suit the strength of the engine, the drive teach and rear axle have been also changed. The rear axle, with a tools ratio of 3.62 : 1, has a variable differential lock from 0 - 100 % depending at the load of the V8 TOPSTER. In addition the AC Schnitzer "Short Shift" is geared up.

Perfect retardation is provided via the AC Schnitzer excessive overall performance brake package. This makes use of large brake disks of Ø 365 x 32 mm at the the front and Ø 328 x 20 mm at the rear in conjunction with special brake calipers (2-piston at the the front and unmarried-piston floating caliper on the rear). Even after several "tough brakings", the system achieves deceleration values of 1 g and more.

In motorsport the precise set-up is regularly decisive for a victory or podium area, and our improvement engineers area specially great significance on premier suspension settings. In the V8 TOPSTER the using dynamics are decisively improved via the special improvement of a 9-position adjustable AC Schnitzer racing suspension. As nicely as decreasing through 35 mm with regards to its remote relation - the same old Z4 - the spring and damper fees were significantly changed toward greater sports activities overall performance. In addition the wheel bearings and front and rear manage arms were replaced.

To counter sideways body roll, AC Schnitzer developed anti-roll kits at the front and rear axles. A similarly suspension spotlight is the aluminium strut brace which optimally prevents torsion in the car the front.

The AC Schnitzer V8 TOPSTER continues contact with the asphalt thru the emblem-new racing rims Type IV. The wearing yet elegant 5-spoke wheels have especially best filigree work. The individual spokes which run superstar-shaped from the pentagonal wheel centre to the polished bed perfectly supplement the avant-garde TOPSTER outfit. But the wheel and tyre aggregate isn't just an aesthetic highlight. With sizes nine.0J x 20" ET 18 with tyres 255/30 R 20 (front) and eleven.0J x 20" offset zero with tyres 305/25 R 20 (rear), the TOPSTER can nook at speeds in any other case reserved for a thoroughbred Touring Car.

Wheels of this size should be accommodated someplace. Just one purpose why the bodywork notably needed to be adapted to the a ways higher needs and widened by means of 13 cm overall.

Even at the beginning glance, the reshaped bonnet of the AC Schnitzer V8 TOPSTER, with its unmissable power bulge and large air outlet, already shows that under it sits a completely effective engine which desires maximum cooling air drift, especially beneath full load.

Also a brand new development is the front skirt which offers the TOPSTER an excellent lower look and drastically improves downforce at the front axle at excessive speeds. Its large air inlet with critical grille ensures additional cooling for the engine and front brakes, and gives the TOPSTER an unmistakable facial expression. Last however now not least, the xenon headlamps integrated into the front skirt ensure that even at night time, the driver has extraordinary visibility.

To don't forget the venting of the V8 engine, the brand new the front facet walls incorporate huge air vents which, with their 3 chrome ribs and integrated flashers, are reminiscent of the deflectors on the AC Schnitzer ACS4.

But now not only on the the front of the automobile must the V8 TOPSTER have good enough air alternate to expand its full capacity. This precept certainly also applies to the rear.

Consequently the hanging side skirts residence air ducts for the rear brakes. The facet skirts, which also supply the TOPSTER an elongated look, form the harmonious transition to the rear facet partitions and the titanic rear. The rear skirt contains not most effective an underfloor wing, however additionally the whole double exhaust device made from stainless-steel.

The in particular advanced roof, with its assisting characteristic, in addition reinforces the body of the V8 TOPSTER. With the TOP, the TOPSTER develops a new, homogeneous frame side line - much like a coupe. The integral rear roof wing at the side of the two-piece rear wing established left and right on the boot, improves the downforce of the entire body.

In the development of the special accent range for the BMW Z4, even the preliminary research of the TOPSTER will be considered. Similarities within the aerodynamic applications available for the BMW Z4 and the V8 TOPSTER are consequently deliberate and technically practical.

The interior of the AC Schnitzer V8 TOPSTER is a aggregate of developments within the AC Schnitzer range available for many BMW fashions, and special one-off merchandise. These consist of the racing bucket seats in leather. The airbag sports steerage wheel, tools lever gaiter and handbrake cover are also provided in Alcantara with orange stitching. Velours foot mats also with orange applications and the leather-based logo spherical off the TOPSTER interior.

A carbon-fibre indoors and chromed cowl for the usual roll-over bar and the aluminium add-ons - comprising the pedal set, foot rests, equipment knob and handbrake take care of - are however additives of the standard AC Schnitzer variety for the Z4.