the charging and travel times of our Supertest

MG 5

The MG 5 Extended Autonomy is intended to be versatile. It is still necessary that he can take the road serenely. This is the subject of this probe part of the Supertest.

The Supertest, what is it? This is a new test format on which follows the first impressions collected during the initial handling. It is a deepening worthy of the greatest speleologists, carried out over much longer distances and always on the same route according to a very precise protocol which is intended to be repeated with each novelty. We started this exercise with plug-in hybrids and we are now also applying an evolution dedicated to electric ones. The goal? Gather comprehensive information from a long-term test in real conditions!

Feel free to suggest other questions in the comments for this new section!

Already passed through our various test benches, the MG 5 showed a relative sobriety. With its 57 kWh battery, the break promises a mixed autonomy of 358 km on our typical loop and 255 km of autonomy on a long journey exclusively on the motorway. It is correct and that puts it in the good average of the segment. Still, it has a maximum charging power of 87 kW on fast terminals, which is well below the competition. What tarnish its versatility?

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MG 5 recharging curve: a useful full in 35 minutes

With such a recharging power, the MG 5 promises a full from 0 to 80% in 40 minutes with its peak announced at 87 kW of power. A power slightly exceeded since during our recharging and curve acquisition test, we recorded a maximum of 90 kW. That puts it on the same level as le MG ZS EVwhich had failed to reach the indicated value of 92 kW.

From the start of the charge, the power climbs to its maximum and forms a slightly ascending plateau up to 40% charge, when a first step is felt. The curve drops gradually to 80% load, where the power is 52 kW. It is rather correct in absolute terms, but also in relative terms, since it represents barely 42.2% less than the maximum power announced. For comparison, a Renault Megane e-Tech shows a drop of 68.7%!

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The curve is less radiant then, because the power drops quickly, reaching 21 kW at 90% and 7 kW at 95%. You have to wait 11 more minutes to reach 90% and the full tank to 100% is executed in 1h13. But again, it’s better than what we observed with the MG ZS EV. Also, note that the break presented a capricious compatibility with Efacec terminals of the Allego network, but to a lesser extent compared to the ZS. With other operators, however, there is no problem, not even on a Tesla Supercharger!

Typical recharge curve
10 to 80% 80 to 100% 10 to 100%
Charging time (in min) 35 38 73
Autonomy gained (in km) 178 51 229

Autonomy recovered: 158 km in 30 minutes

On a long motorway journey exclusively, we noted a total autonomy of 255 km, or 178 km of “useful” autonomy on a full tank of 10-80% as it is always recommended to do. But it is the autonomy recovered by recharging time that interests drivers the most. So here is a table showing these values ​​in 15-minute increments from a 10% SoC. A simple usual stop in the station while taking the time to drink a coffee saves nearly 90 km of autonomy.

Autonomy recovered
Charging time (in min) 15 30 45 60
Autonomy gained (in km) 89 158 201 216

How much do MG 5 refills cost?

Apart from Total Énergie and a few other less present operators, billing by the minute is no longer relevant on the motorways. Ionity recently changed its tune, simplifying the calculations, although this does not always prove to be the most interesting solution. Either, we will do with it. During our various tests, the MG 5 consumed an average of 43.2 kWh according to the display screen of the terminals between 10 and 80%. At Ionity, the useful full represents €29.81 (€0.69/kWh). At Fastned, the note drops to €25.49, while it takes €19.01 at Electra.

On this typical journey, we made three top-ups for a total amount of €47.1 excluding operator fees. At the Darvault service area (430 km away), where we last recharged, this represents a cost of €10.95/100 km. Depending on the solution chosen to find the starting SoC, this would bring the total cost price between €11/100 km (home charging) or €13.30/100 km (Electra charging for example). Remember that AC charging is made easier with a power of 11 kW as standard.

Route planner: no on-board solution

The latest addition to the range, the MG 5 still does not offer a route planner. This is really its only real flaw, since drivers will have to make careful calculations before starting and trust their estimates. Otherwise to use applications such as ABRP or Chargemap, which both showed the same forecasts. For this 500 km journey, the two systems provided three different stations for 1h10 of recharging in total.

On our side, several solutions were available to us. The first was to follow one or other of the applications by planning our usual stops (Fastned station in Saint-Ambreuil, Ionity stations in Maison-Dieu and Darvault). We also imagined a more daring roadmap, which would have allowed us to reach the Lochères area on a full tank, with nearly 3% battery remaining on arrival. Ambitious, for what would seem to save us just 5 minutes of cooldown in total.

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We finally decided to make three stops, pushing the first one to the Electra station in Beaune. A recent intermediate solution, which in particular facilitates travel in the other direction. To the usual 4h20 drive, we added 55 minutes of recharge in total. With our flat rate of 4 minutes per stop (time of evolution and launch/recharge stop), the total time for this 500 km journey amounted to exactly 5h27. This is ultimately what we are entitled to expect from a compact electric station wagon with a battery of less than 60 kWh and, this is where it becomes more interesting, faster than with an MG ZS EV.

What is the Supertest?

Lovers of figures and allergic to official technical data sheets, the Supertest, new test format d’Automobile-Propre, is made for you, bringing together data collected during a test in real conditions and according to a transparent and precise protocol. We will add them the Wednesday following the publication of the second part devoted to the MG 5 at our summary article allowing to compare the values ​​noted of the models tested, which will make all the value of the heading.

If you want to go further, do not hesitate to consult our trials and interact with the community on our discussion forum.