Smart (Mcc) Forfour vs Smart (Mcc) Cabriolet: MOT reliability compared
Updated 05 September 2026.
21.1%
Smart (Mcc) Forfour MOT failure rate, 6.2 pts lower than Smart (Mcc) Cabriolet
Smart (Mcc) Forfour is the more reliable MOT performer: 21.1% of Smart (Mcc) Forfour MOTs fail versus 27.3% for Smart (Mcc) Cabriolet, a 6.2 point gap.
| Metric | Smart (Mcc) Forfour | Smart (Mcc) Cabriolet |
|---|---|---|
| MOT failure rate | 21.1% | 27.3% |
| Tests analysed | 267,501 | 38,430 |
| Most common failure | Tyres (24.8%) | Lamps & electrical (41.1%) |
Questions and answers
Which is more reliable, Smart (Mcc) Forfour or Smart (Mcc) Cabriolet?
Smart (Mcc) Forfour is the more reliable MOT performer: 21.1% of Smart (Mcc) Forfour MOTs fail versus 27.3% for Smart (Mcc) Cabriolet, a 6.2 point gap.
What is the MOT failure rate of the Smart (Mcc) Forfour?
21.1% of Smart (Mcc) Forfour MOT tests result in a failure, from 267,501 tests.
What is the MOT failure rate of the Smart (Mcc) Cabriolet?
27.3% of Smart (Mcc) Cabriolet MOT tests result in a failure, from 38,430 tests.