With the innovative bmw alpina b7 bi-turbo , alpina presents its fourth generation of automobiles based on the bmw 7 series. conspicuous predecessors include the bmw alpina b12 6.0 and b7 , which raised the bar in the high-performance luxury saloon segment. newly interpreted and in every way state-of-the-art , the b7 bi-turbo unites exclusiveness , athleticism and ease in perfect concord.
Yielding rare levels of torque and energy from the charged 4.4 liter v8 , and in conjunction with the electronically-adjustable suspension with spry list stabilisation , the b7 bi-turbo promises to offer a spectrum of driving experiences expediently varied as to be unheard of in this course of automobiles.
The evolution of the traditionalistic 20-spoke 21” alpina classic wheels underline the innovative plot language inaugurate throughout the b7 bi-turbo and impart it a distinct appearance and stout stance.
Powertrain
The bi-turbo mannequin alias that now graces this flagship bmw alpina saloon hints at plane more stout and torque-laden operation over its predecessor , while simultaneously improving on fuel economy.
The fully-aluminium , 4395 cm3 v8 aggregate yields 507 peak horsepower (373 kw) at a temperate 5500rpm , with a maximum torque of 700 nm available between 3000-4750rpm.
Two especially for the alpina powerplant constructed turbochargers with generously-dimensioned turbine vanes are amenable for the forced induction. thorough exploitation of the engine’s potential was achieved by means of optimising the indirect intercooler (air-water/water-air) with its short intake paths and flow-optimised intercooler tracts.
High-performance pistons are at drudgery in the cylinders , carefully developed to harmonise with a compression of 9.2:1 and a maximum turbo boost of 1.0 bar. the result is a formidable specific output of 115hp (85kw) per liter , with a maximum average compression of 20.1 bar , a benchmark plane amongst traditionalistic sportscars.
One look at the torque and energy diagram is enough to spotlight that the b7 bi-turbo will accelerate fiercely and effortlessly from very abject revs. peak torque is available from an unusually wide range of rpm’s , ranging from 3 , 000 to 4 , 750 rpm. this wide powerband coupled with the exquisitely geared zf six-speed automatic sport transmission pampers the occupants with remarkably tall levels of plane drivetrain ease in every driving appointment.
The alpina switch-tronic , which has been programmed to shift exceptionally plane and comfortable in automatic style , offers unalike shift characteristics for every taste and appointment thanks to the additional sport and manual modes. driving the b7 bi-turbo becomes an altogether unalike experience when using the buttons inaugurate on the back of the steering wheel for manually selecting the gears of the automatic transmission. this ensures shifts take appointment within a few hundred milliseconds and with just minimal interruption to the transmission of energy , favourably comparable plane to the best twin-clutch transmissions. as a result , the b7 bi-turbo sprints from 0-100 km/h in 4.7 seconds , vehemently urgent on to an electronically-limited 280 km/h top haste.
Chassis & suspension
Long gone are the days when a purely “hard and sporty” ride was a sought-after faculty of suspension set-ups. striving for in Truth impartial handling continues to be the intelligent way willful , yielding the best of what is technologically feasible.
In avocation of this goal , marginally shorter and uniquely calibrated springs palliate front and raise ride height by 15mm and 10mm respectively. together with the 21” wheel and tyre combination the suspension is at once sensitive to inputs and instruct in its feel , yet disencumber from the harshness of a purely sports-oriented suspension , imparting this bulky saloon with an agility usually just connected with much smaller sports saloons. the light-weight 21” wheels , with their innovative interpretation of the alpina classic wheel plot , are shod with an especially selected staggered michelin tyre set-up: 245/35 r21 front and 285/30 r21 raise. foregoing run-flat engineering Science , traditionalistic tyres are applied to ascertain a lissome , comfortable finesse that is rare nowadays.
Alpina have integrated state-of-the-art electronic suspension technologies , skilfully and subtly adjusting them to the demanding requirements of our customers. as part of the b7 bi-turbo frequent equipment , the electronic suspension system with dynamic damping control and dynamic ride (active list stabilisation) enable the driver to pick from three distinct suspension set-ups: ease , normal and sport. the b7 bi-turbo offers the driver unheard-of versatility , delivering on long-distance ease just as readily as on back-road trudge , always with a maximum of enjoyment and safety.
Design
At once dynamic , graceful and potent – the silhouette of the b7 bi-turbo is significantly influenced by the evolutionary innovative plot of the 21” alpina classic wheels. a turbine-like three-dimensional curve guides each of the 20 spokes from the centre of the wheel to the boundary , at which point they have a milled surface. depending on the angle of the viewer , the rotational haste of the wheels and the light , the appearance of these classic wheels is constantly changing. of course they continue to have the refined tyre air valves , safely and attractively hidden absent behind the lockable wheel covers.
In unwavering “form-follows-function” frame , the typical alpina front integrates the fresh-air requirements of the transmission and engine oil coolers , which are separated out of the leading cooler module for improved efficacy. the plot of the front and raise forager follows clearly aerodynamically-oriented interests , reducing erect at the front and raise by 30% and 15% respectively. left and right , the exhaust system’s two double tailpipes are seamlessly integrated into the raise valance and are see to the b7 bi-turbo’s energy.
When climbing into the b7 bi-turbo , one immediately takes watch of the alpina door sill trims which are finely illuminated in blue. the switch-tronic steering wheel is gloved and hand-stitched in the finest , most comfortable lavalina leather. in the driver’s line of sight , red pointers over a field of blue dials grace the tool cluster , where a black-panel lcd preserve is amenable for communicating driver-important selective Information.
Exclusive interior luxury wood spruce in the type of myrtle burl , a knotted burl of the laurel just inaugurate on the pacific littoral of the unified states , supplies a warm and traditionalistic ambience. optional alpina piano lacquer interior spruce with its silver diagonal rhombs , offers a modern and just as exclusive alternative.



July 10th, 2009
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