M28.70/M28.80 vs 9A1/MA1

Side-by-side reliability comparison

Higher reliability score
9A1/MA1 BUY 82/100
+12 points over M28.70/M28.80
0 / 100
ACCEPTABLE M28.70/M28.80 Porsche
0 / 100
BUY 9A1/MA1 Porsche

Specifications

M28.70/M28.80
9A1/MA1
Brand
Porsche
Porsche
Verdict
ACCEPTABLE
BUY
Reliability
70
82
Years
2017--present
2008--2019
Displacement
3996 cc
3800 cc
Layout
V8
F6
Type
Petrol Turbo
Petrol Na
Power
550--630 hp
350--400 hp
Known Issues
4
1
Total Risk Cost
€3,800--€10,200
€0--€0

Character

M28.70/M28.80

"Brute force V8TT. 550-630hp. Reliable but maintenance costs are eye-watering. Turbo oil lines need watching."

9A1/MA1

"991 Carrera NA and 997.2. Direct fuel injection. No IMS bearing. No bore scoring concern. Porsche's most reliable modern flat-6. Oil separator system improved. Excellent longevity."

Issues Comparison

M28.70/M28.80 4

▲ HIGH
Turbo oil feed line leak €2,000--€5,000 50,000 km--100,000 km
● MODERATE
Ignition coil / spark plug failure €400--€1,200 40,000 km--80,000 km
● MODERATE
Coolant line / hose deterioration €800--€2,500 60,000 km--120,000 km
○ MINOR
Engine/transmission mount wear €600--€1,500 80,000 km--150,000 km

9A1/MA1 1

○ MINOR
No significant design flaws known €0--€0 0 km--0 km

Models

M28.70/M28.80 4

Panamera 971 2017--2020 Panamera 971 2020--2024 Cayenne Turbo E3 2018--present SUV Cayenne Turbo GT E3 2021--present SUV

9A1/MA1 0

No models listed.

Full M28.70/M28.80 Report Full 9A1/MA1 Report