Now you'll have to forgive us if in this article we immediately descend
into techno-babble. But we think it necessary - very necessary in fact.
Otherwise, how are we going to be able to justify saying in this test of
the Corolla Ascent Wagon quite a lot which appears diametrically opposed
to what we said only recently about the Corolla Seca Levin?
Because we must state just this: the manual transmission Corolla wagon
(and, we assume, the other manual trans Corolla body shapes as well)
drives completely and utterly unlike the automatic trans Corolla that we
previously sampled.
Yes, sure, auto transmission cars are different to manual transmission
cars - we know that too. But normally not like these two...
Take the 4-speed auto transmission Seca Levin. Its top gear ratio (ie
4th) uses a 0.892:1 ratio, and this works with a final drive
2.962. Multiply those together and you get a top-gear number of 2.64.
Pretty tall-geared - that means the engine spins only 2.64 times as fast
as the wheels.
Hmm, now let's move to the 5-speed manual transmission cars. Top gear
(ie 5th) is 0.815:1, while the final drive ratio is 4.312.
Again do the multiplication and you end up with 3.5.
So? Well, the manual trans cars are geared an incredible 33 per
cent lower than the auto trans cars!
Don't see the significance? Well, in the manual car at 110 km/h in
fifth gear the tacho's showing 3500 rpm. Now that just so happens to be
pretty close to peak torque from the 1.8-litre engine (171Nm at 4200 rpm).
So when you put your foot down at this speed, there's immediate response,
even without changing gear. Same when you climb hills - no gear change's
necessary.
And while in the much more highly geared auto making the same right
foot movement will still result in acceleration - the gearbox will just
change down a few ratios - it's just not the same. Nowhere near it.
And it shows very clearly in the acceleration figures. On Toyota's own
data, the auto Corolla gets to 100 km/h in 11.4 seconds and does the
standing quarter in 17.8. And, with just the same power and body mass, the
manual (much lower geared cars) do these performance times in 9.1 and
16.5!
Some difference, eh?!
And on the road it feels like the manual car's got something like 30
per cent more power than the sluggish auto. (And in the performance times
you can see why!) But even that's an unfair statement - the auto's not
actually 'sluggish', because it can change down a gear (or two or three)
as required. Nope, it's more than that. The sheer throttle response and
useability of the engine is simply so much better in the
lower-geared manual cars. Like, it feels as if there really
is a VVTi engine of modern design under the bonnet...
The hugely different gearing also means that on the way through the
'box, the torque multiplication is much higher. Like, you just race
through 'em - and changing from first to even fifth is no big deal...
So what's the downer? Why doesn't every manufacture gear their cars so
that they can reach the redline in fifth? Well, they used to do just that.
Back in the 70s both this tester's BMW 3.0Si and his AlfaSud Ti were
geared in exactly that way - max revs equalled max speed. However, these
days, carmakers almost always trade off revs for better fuel economy (a
slower turning engine is generally a more economical engine) and lower NVH
(less revs equals less noise).
And so yes, the incredibly low-geared Corolla is quite noisy - within
the context of $30K cars, anyway. After all, that's how much the
previously tested Corolla Seca Levin was. In fact, to be accurate, quite a
lot over $30K.
But take out some interior fancy bits (and less flippantly, the two
side airbags) and the pictured Ascent Wagon - still complete with the
optional ABS and passenger airbag - tips the scales at $21,390. And even
with the engine revving hard all of the time, in this (revised) pricing
class, the noise and vibration are not too bad.
And the handling? If you remember, we criticised the handling of the
auto Seca quite strongly. And we won't try to kid you into thinking that
changing the transmission alters the suspension... which in fact is
identical across the Corolla range. But what it does do is alter
the throttle control - and quite markedly. With the engine always having a
bucketload of revs on board, steering on the throttle becomes far simpler
- and in the test wagon, the extra mass over the rear wheels also made the
back feel a bit more movable with the right foot as well. And that's even
with the skimpy (and skinny) Dunlop 175/70 tyres on 14-inch steel
rims!
Bottom line - the auto Corolla felt like it was trying to be something
it wasn't. It was pretending to be a semi-luxurious and refined car,
suitable for the young-woman-about-town (stats show that this is the
predominant buying group) and instead falling into the category of the
sort of car driven by only the very elderly (and stats also show that lots
of old people buy Corollas). But the as-tested 32 per cent cheaper Ascent
wagon fits its category like a glove - in the context of smallish wagons,
it's cheap, cheerful, sophisticated and roomy.
So let's get away from the auto-trans Seca comparison: how well does
the Ascent 5-speed manual wagon stand on its own feet? Pretty damn
well!
The interior of the test car was a sombre black - seats, dash,
doortrims. This makes it look smaller than it is - for this is a roomy
small car. Rear head, knee and footroom are all excellent, while front
space is fine. The seats are good, while the switchgear works - as we said
about the much more expensive Seca - with genuine Lexus quality. The
equipment highlights of this slightly optioned car included twin airbags,
air, a decent radio cassette and ABS. The windows are wind-your-own, but
electric mirrors are provided. There is driver-door central locking but no
radio remote.
Step around the back and lift the wide-opening tailgate and the good
story continues. The load area is capacious, and includes excellent design
touches like a cargo cover blind that stores beneath the rear floor.
You'll also find a second shallow compartment under there, in addition to
a full-size spare wheel. The rear seat folds down on the traditional 60/40
split, with the backrests ending up not quite flat.
Three head restraints and lap/sash seatbelts are provided in the rear,
with the centre sash being able to be rewound right to the roof to clear
the way for seatback folding and to give an open load area.
Like the Seca, the Ascent is beautifully built with excellent paint,
good door shutting, and a quality interior. You won't find the cheap and
nasty plastic mouldings that the car's price could lead you to expect.
On the road the Wagon is responsive and eager; the short gearing means
that you're always using plenty of revs but the variable valve timed
engine is happy to run to its 6400 rpm redline without becoming
breathless. However, the lack of traction control is obvious - in the wet
the car will easily spin its wheels and power-on handling is characterised
by lots of understeer. However, as touched upon earlier, the extra mass
over the rear wheels and the delightful throttled controllability lets the
enthusiastic driver place the car very well.
In fact, on a winding country road it's very easy to forget that this
is just a low cost wagon: heel and toeing as the short-throw gearlever
gets flicked through the box, engine constantly between 4000 and the 6500
rpm rev cut, precise and well-weighted steering letting the car be fluidly
guided.... Well, you could almost be driving a sports car.
The ABS - working with four-wheel discs - shows good resolution (it
works effectively even at a walking pace - great for negotiating steep
driveways) and emergency braking pulls the car down in speed hard and
securely.
Given the way in which the car was driven, fuel economy on test was
excellent -- with a figure of 7.9 litres/100 recorded. The AS2877
government test figures are 8 (city) and 5.8 litres/100 km (city).
The manual wagon scores points for its quality, driveability and
capaciousness. It's just the sort of car that is
budget-and-practical-family-truckster in status, but also can be great fun
to drive.
Note that you can buy this car in an auto model: please don't...
Corolla Ascent Wagon Manual 5-speed Fast
Facts...
- Low gearing gives eager acceleration and throttle response
- Beautifully built inside and out
- Roomy and well designed interior
- Handling characterised by understeer
- Good value
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Более 2000 руководств
по ремонту и техническому обслуживанию
автомобилей различных марок
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