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Porsche Taycan vs Stellantis e-CMP (e-208, Corsa-e, ë-C4…): which engine is more reliable?

According to our risk index, the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) carries less risk than the Porsche Taycan: 36/100 versus 39/100 (both moderate risk). The Porsche Taycan has 2 documented serious faults, the main one being «High-voltage battery cell modules with a risk of short circuit and fire»; the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) has 3 documented serious faults, the main one being «Loss of traction from a high-voltage system cut-out (‘electric traction fault’ warning)».

Risk index

Porsche Taycan

39

Moderate risk · 2 serious faults

Risk index

Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

36

Moderate risk · 3 serious faults

Lower risk

The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated

15 sourcesHow we work

Is the Porsche Taycan reliable?

Open sources do not document faults with the electric motor or the two-speed rear gearbox; what is on record are high-voltage battery recalls (cells with a short-circuit risk, built 2018-2024) and a 2021 software update for loss of traction. Check the recalls against the chassis number.[1][2][3]

See the 2 of the Porsche Taycan faults

Is the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) reliable?

Stellantis’s electric drivetrain has no serious factory faults documented: the battery holds up well (median 94% health at 50,000 km and 90.7% at 150,000 km in the e-208 and Corsa-e), and the problems cited are the charger and several software campaigns.[4][5][6]

See the 5 of the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) faults

Side-by-side comparison

Comparison of Porsche Taycan and Stellantis e-CMP (e-208, Corsa-e, ë-C4…)
Porsche TaycanStellantis e-CMP (e-208, Corsa-e, ë-C4…)
Technical data
TypeEngineEngine
FuelElectricalElectrical
Displacement——
Timing——
Power408–1034 hp136–156 hp
Productionsince 2019[7]since 2019[8][9]
Reliability
Risk index (what is it?)39Moderate risk36Moderate risk
Documented faults25
Of high or critical severity23
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: High-voltage battery cell modules with a risk of short circuit and fire
  2. High severity: Software fault with sudden loss of traction (2019-2021)
  1. High severity: Loss of traction from a high-voltage system cut-out (‘electric traction fault’ warning)
  2. High severity: Traction battery control calibration: motor cut-out from faulty readings (2022)
  3. Critical severity: Astra Electric: communication fault between control units that can make the car move backwards (2023)
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • Performance Battery, 79.2 kWh gross (2019-2024)[1][2][10]
  • Performance Battery Plus, 93.4 kWh gross (2019-2024)[1][3][11]
  • 2024 facelift: 89 and 105 kWh gross batteries[1][7]
  • e-CMP 50 kWh, 136 hp (2019-2024)[4][5][6]
  • Large vans 75 kWh, 136 hp (2020-2024)[9][12]
  • e-CMP second generation 54 kWh, 156 hp (2022-)[13][14][15]
AvoidVersions to avoidNoneNone

Severity of each fault: green, low; amber, medium; red, high; dark red, critical. How we rate them

Cars that each one is fitted to

Porsche Taycan

Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

See the 20 models with the Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

Other comparisons

With the Porsche Taycan

With the Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

Compare other engines

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Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. Porsche Taycan (2018 - 2024): high-voltage battery cells recallcar-recalls.eu · Other source · published 25 January 2025 · consulted 30 October 2026
  2. Porsche Taycan: Probleme mit den Batteriezellen der HochvoltbatterieÖAMTC · Official body · published 27 February 2024 · consulted 30 October 2026 · in German
  3. Porsche Taycan: Rückruf für 43.000 Autos wegen SoftwareproblemenInsideEVs Deutschland · Motoring press · published 2 July 2021 · consulted 30 October 2026 · in German
  4. Ni un solo eléctrico baja del 86 % de batería: 500.000 tests miden la degradación de 20 modelos a los 150.000 kmtestcoches.es · Reliability study · published 4 September 2026 · consulted 30 October 2026 · in Spanish
  5. Peugeot e-208, e-2008, DS 3 e-Tense. Un rappel de 5 761 exemplairesL'argus · Motoring press · published 20 April 2022 · consulted 30 October 2026 · in French
  6. E-Fahrzeug-Rückruf: E-Motor könnte ausfallenauto motor und sport · Motoring press · published 1 March 2023 · consulted 30 October 2026 · in German
  7. Porsche Taycan - WikipediaWikipedia · Other source · consulted 30 October 2026
  8. Common Modular Platform (CMP / e-CMP)Wikipedia · Other source · consulted 30 October 2026
  9. Peugeot Expert (electric versions)Wikipedia · Other source · consulted 30 October 2026
  10. Porsche Taycan (2020 - 2023): high-voltage battery fire recall (APB5)car-recalls.eu · Other source · published 5 March 2024 · consulted 30 October 2026
  11. Por qué Porsche llamará a revisión a miles de unidades del Taycan: todos los datosAutopista · Motoring press · published 7 July 2021 · consulted 30 October 2026 · in Spanish
  12. E-Auto: Rückruf bei Opel, Peugeot, Citroën und DSGebrauchtwagenberater.de · Motoring press · published 8 June 2023 · consulted 30 October 2026 · in German
  13. Fiat 600 : fiabilité, pannes et rappels (600e)Fiches-auto.fr · Reliability study · consulted 30 October 2026 · in French
  14. Rückruf Opel Astra Electric: Kann in falsche Richtung fahrenauto motor und sport · Motoring press · published 23 November 2023 · consulted 30 October 2026 · in German
  15. Opel Astra (Astra Electric)Wikipedia · Other source · consulted 30 October 2026