Alfa Romeo's twin-clutch transmission, first
made available in the MiTo earlier this year, is now also available in
the Giulietta. The new transmission is teamed with MultiAir engines that
have an idle stop as standard - so the MiTo and the Giulietta are the
first vehicles in the SA market to have all three.
The transmission works in either
full automatic or sequential mode, as required. The driver can manually
change the gears either up or down with the paddle shifts on the
steering column or the gearshift.
It's a standard double-clutch
system with, effectively, two gearboxes in parallel, one for
even-numbered gears and one for odd, each with its own clutch. That
allows the next gear to be selected while the previous one is still
engaged, which makes for very, very fast gear-changes by simply
disengaging and engaging the relative clutches.
Since there's no fluid-drive
torque converter, fuel consumption is about 10 percent better than with a
conventional auto transmission, and the system lends itself to
idle-stop technology, with which not all torque-converter setups are
compatible.
NOW DOWN TO CASES:
The Giulietta TCT Distinctive has a
125kW, 1.4 Turbo MultiAir engine that takes, according to Fiat Auto SA,
from 0-100km/h in just 7.7 seconds - 0.1sec faster than the manual
version - and on to a claimed 218km/h flat out.
Schematic shows how Alfa Romeo twin-clutch transmission works.
.
Fiat
also says fuel consumption over a combined cycle has been reduced from
5.8 litres per 100km on the manual to 5.2, while CO2 emissions are down
from 134g/km to 121.
Standard kit on the Giulietta
Distinctive TCT includes Blue&Me connectivity, 17” alloy rims,
dual-zone automatic climate control, leather steering wheel with
multimedia controls, paddle shifters, trip computer, front armrest with
storage compartment, foglights, reconfigurable control panel, a stylish
chromed insert (chrome line) framing the side windows.
The standard-issue dashboard insert is painted grey, but you can ask for white, red or polished aluminium.
Options include y Port for the
Blue&Me-TomTom system, which intgrates a portable TomTom satnav with
the car's systems via Bluetooth wireless connectivity, using a
custom-designed dashboard mount.
BOTTOM LINE
Giulietta 1.4 Turbo Multiair Distinctive TCT - R315 000
With
the advent of the twin-clutch transmission the Giulietta range now
comprises four models: the Progression, Distinctive, Distinctive TCT and
Quadrifoglio Verde, each of which comes with a five-year or 150 000km
warranty, and a six-year or 90 000km service plan with service intervals
of 30 000km on the 1.4-litre Turbo models.
http://www.iol.co.za/motoring/cars/alfa-romeo/giulietta-gets-dual-clutch-gearbox-1.1302847#.T84IdFsWGnA
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