Sigma 1.4 vs Coyote 5.0 V8

Side-by-side reliability comparison

Higher reliability score
Coyote 5.0 V8 BUY 82/100
+6 points over Sigma 1.4
0 / 100
ACCEPTABLE Sigma 1.4 Ford
0 / 100
BUY Coyote 5.0 V8 Ford

Specifications

Sigma 1.4
Coyote 5.0 V8
Brand
Ford
Ford
Verdict
ACCEPTABLE
BUY
Reliability
76
82
Years
2001--2012
2015--present
Displacement
1388 cc
4951 cc
Layout
I4
V8
Type
Petrol Na
Petrol Na
Power
75--96 hp
421--507 hp
Known Issues
1
2
Total Risk Cost
€50--€200
€500--€2,500

Character

Sigma 1.4

"Fiesta/Fusion. Same Sigma family as 1.25. Timing chain. Thermostat. Coil pack. Slightly more power than 1.25 for minimal cost increase. Reliable city car."

Coyote 5.0 V8

"Mustang GT. Modern pushrod-free DOHC V8. Ti-VCT dual variable timing. Exceptionally reliable for a performance V8. Oil consumption on track use. No known catastrophic weaknesses."

Issues Comparison

Sigma 1.4 1

○ MINOR
Coil pack failure €50--€200 40,000 km--80,000 km

Coyote 5.0 V8 2

● MODERATE
Timing chain/phaser tick (Gen 1) €500--€2,000 80,000 km--150,000 km
○ MINOR
Oil consumption on track use €0--€500 40,000 km--100,000 km

Models

Sigma 1.4 3

Focus Mk1 (DAW) 1998--2004 Fiesta Mk6 (JD/JH) 2002--2008 Fiesta Mk7 (JA8) 2008--2012

Coyote 5.0 V8 3

Mustang S550 2015--2023 Mustang S650 2024--present Mustang S650 2024--present
Full Sigma 1.4 Report Full Coyote 5.0 V8 Report