MG4 Standard tyres are seriously dangerous!

fnegroni said:
Just had a full set of Bridgestone Turanza 6 fitted today.
Full review coming soon, once they’ve been properly run in and I’ve had a chance to play in different conditions, particularly in the wet.
Need to check gps speed vs speedometer, noise levels, grip in the wet, handling, consumption (aka rolling resistance), comfort.
In terms of looks, subjectively, they look the part, with aero rim guards too. A more grown up tyre I’d say.
The tread when new is 7mm according to my gauge.
They are made in Italy, and they have been set to 2.5bar at the rear and 2.45bar at the front at 7C ambient temperature.
Click to expand...
Speedometer matched GPS speed, and as accurate as with stock tyres.
Still waiting for the run in period to end in a week or so.
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Early review of the Bridgestone Turanza 6 on my SE SR.

Tyres have done about 200 miles of gentle driving and mostly motorway.

I took them for a more spritely drive in the wet today at 5C ambient temperature on the local A and B roads.

First impressions are good. Definitely louder than the OE tyres. A more pronounced "woosh" rather than any sort of rumble. It was much more noticeable when the tyres were brand new, and it became progressively and objectively less loud. Unfortunately I didn't have my sound monitor with me at the time but I will take a reading one evening from inside the cabin soon.

Grip is vastly improved, especially in the wet. They feel more planted, more responsive to steering input but progressively so, without sudden change of grip.

A thing I nearly instantly noticed is how much more eager the regen seems to be. I noticed it as soon as I drove away from the tyre garage: probably it's just the extra grip, but whilst in the past abrupt accelerator lift offs at regen level 3 would have caused the rear tyres to noticeably lose grip and even at times skid on wet and cold tarmac, these seem unfazed by it.

Too early to make an energy consumption comparison, due to the changing weather patterns and the mix of dry and wet roads, but I'd be inclined to say that consumption is the same, if not a tad better, maybe 0.1mile per kWh on average (or 2.5% better fuel economy) on mostly wet roads and low temperatures: how much of that is due to them being new I don't really know.

[EDIT] Forgot to mention vibration: on the original PremiumContact C there were several sections of road that I frequently drive on, where at certain speeds or steering angle I could feel a slight vibration coming from the front end most likely. It even felt like a drivetrain issue, except it seemed to be coming from the front, hence my confusion at first.
The vibration did get better over time (5,000 miles) but it never quite went away. It wasn't something to write home about but I knew it was there.
These Turanza 6 do not exhibit any of it: if there is any vibration it must be so subtle, it feels very well dampened. And it might be that low rolling resistant tyres do have this sort of vibration inherent in their design and with the electric car having no vibrations of its own from an ICE, it seems to me that the Turanza 6 are a great improvement.

Will review again in a thousand miles or so and as the weather gets warmer etc.

Not disappointed in the slightest, at least so far.
 
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fnegroni said:
Early review of the Bridgestone Turanza 6 on my SE SR.

Tyres have done about 200 miles of gentle driving and mostly motorway.

I took them for a more spritely drive in the wet today at 5C ambient temperature on the local A and B roads.

First impressions are good. Definitely louder than the OE tyres. A more pronounced "woosh" rather than any sort of rumble. It was much more noticeable when the tyres were brand new, and it became progressively and objectively less loud. Unfortunately I didn't have my sound monitor with me at the time but I will take a reading one evening from inside the cabin soon.

Grip is vastly improved, especially in the wet. They feel more planted, more responsive to steering input but progressively so, without sudden change of grip.

A thing I nearly instantly noticed is how much more eager the regen seems to be. I noticed it as soon as I drove away from the tyre garage: probably it's just the extra grip, but whilst in the past abrupt accelerator lift offs at regen level 3 would have caused the rear tyres to noticeably lose grip and even at times skid on wet and cold tarmac, these seem unfazed by it.

Too early to make an energy consumption comparison, due to the changing weather patterns and the mix of dry and wet roads, but I'd be inclined to say that consumption is the same, if not a tad better, maybe 0.1mile per kWh on average (or 2.5% better fuel economy) on mostly wet roads and low temperatures: how much of that is due to them being new I don't really know.

[EDIT] Forgot to mention vibration: on the original PremiumContact C there were several sections of road that I frequently drive on, where at certain speeds or steering angle I could feel a slight vibration coming from the front end most likely. It even felt like a drivetrain issue, except it seemed to be coming from the front, hence my confusion at first.
The vibration did get better over time (5,000 miles) but it never quite went away. It wasn't something to write home about but I knew it was there.
These Turanza 6 do not exhibit any of it: if there is any vibration it must be so subtle, it feels very well dampened. And it might be that low rolling resistant tyres do have this sort of vibration inherent in their design and with the electric car having no vibrations of its own from an ICE, it seems to me that the Turanza 6 are a great improvement.

Will review again in a thousand miles or so and as the weather gets warmer etc.

Not disappointed in the slightest, at least so far.
Click to expand...
Thanks. Curious how they behave. Thet may be a candidate on 17 inch rims for the summer.
 
Will publish a more thorough review this weekend.
After >700 miles I feel I have enough data to help make an informed decision if anyone is thinking of doing same.

For those who can't wait, here is the TL;DR

The Turanza 6 return the same combined energy consumption as the OE PremiumContact C on the MG4 SE SR in size 215/50R17, but do so with vastly improved and consistent handling in all conditions, especially on wet and cold surfaces
 
A lot of late 2023 cars were delivered with chinese versions of the turanza 5. Poorly manufactured, coming with multiple shortcomings. I can write a book about them..
Only a small number of cars received the latest version 6 before MG started putting Maxxis and Kumho on them. If you want the turanza 6, you need to pay extra.
 
I have now covered >800 miles with this set of Bridgestone Turanza 6 on my MG4 SE SR to replace the Continental PremiumContact C that came as original equipment.

TL;DR​

The Turanza 6 return the same combined energy consumption as the OE PremiumContact C on the MG4 SE SR in size 215/50R17, but do so with vastly improved and consistent handling in all conditions, especially on wet and cold surfaces

Noise​

Noise: the Turanza 6 are louder; they emit what I can only describe as brown noise, a low pitch woosh, especially on wet surfaces or rough tarmac. The noise is not a rumble, and does not annoy me in the slightest, it is just more noticeable at speeds above 30 mph. The wind noise coming from the right wing mirror is much louder and still audible, so these tyres are definitely on the quiet end of the scale.

Handling​

Consistent and predictable: turn in is sharper, but not dramatically so. The sidewalls are compliant and the ride quality is better than the OE tyres: much fewer vibrations but improved feel.

They excel in the wet, providing plenty of grip. Their nature suits the rear-wheel-drive configuration of the MG4: the backend loads well under acceleration during corner exit at speeds between 30 and 50mph, which is fast sweeping bends on country lanes.

In the dry, the tyre is very sticky even on cold tarmac, and behaves like any regular summer tyre, despite the lower rolling resistance.

More importantly, the Turanza 6 feels safe and surefooted in mixed conditions: transitions between wet and dry, even mid corner, do not upset its stance and changes of direction are swift and precise.

Energy consumption​


There's definitely some improvement in energy efficiency, up to 0.2 miles/kWh more on the wet, especially when temperatures are low or at higher motorway speeds. The increased traction is very noticeable under breaking, especially with higher regen levels.

In the dry, at lower speeds, such as around town, the OE tyres were possibly more energy efficient, but at speeds above 50 mph there was no difference in consumption, yet a more sure footed ride, 70mph on the Turanza 6 feeling like 60 mph on the OE tyres.

A combined winter/summer average consumption will probably be either about the same, or 0.1 to 0.2 miles/kWh better depending on your driving style and weather conditions.
 
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Hmmmm... maybe the original tyres are not wearing well. Still plenty of tread but today I had the back step out a long way while under moderate acceleration on a slip road joining the motorway. It was wet but it took me by surprise and a long time for the car to react, could have spun if I had not been concentrating.

Might get them changed before winter. Only done 13,000 miles but they are not inspiring much confidence.
 

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