The proposed 2026 DfT changes do not require older cars to meet modern Euro 6/7 standards or reproduce their original type-approval emissions test at every MOT. A vehicle must broadly remain compliant with the emissions standard under which it was originally approved.
The MOT itself is much simpler: petrol cars are tested for CO, hydrocarbons and lambda, while diesels primarily undergo a smoke-opacity test plus inspection of emissions equipment. It cannot comprehensively establish original Euro-standard compliance.
The proposals are therefore principally aimed at deliberate tampering—DPF removal, EGR or AdBlue/SCR deletion, catalyst removal and associated ECU modifications—not normal ageing.
This distinction also makes engineering sense. Modern engines integrate EGR, turbo, injection, DPF and SCR within one calibration. Removing components changes back-pressure, combustion temperature, regeneration and fuelling and often requires deliberate ECU recalibration, potentially affecting durability. Conversely, natural DPF/EGR deterioration can increase emissions without deliberate tampering.
So saying “old cars must meet new-car emissions at MOT” is misleading.
People of car twitter I’m reaching out as my car was badly hit by a sightseeing bus in London today at around 16:30 on Mount street in Mayfair, London. Witnesses say it was an open top bus operated by @bigbustours. I’ve reported to the police and filed a report. Any videos??
STOLEN: Volvo V60 T5 Inscription Plus, reg KV69OJT. This is my friend’s pride and joy, and it was stolen in a Hanoi burglary from Beckenham at 6:20am. It’s a distinctive car, finished in rare Maple Brown with cream leather. Please keep an eye out, and RT this far and wide.
PLEASE SHARE! STOLEN CAR!
A friend of mine has had his 1985 Porsche 911 Carrera 3.2 stolen from secure parking in London. It was last spotted by a TFL camera on 20/11/24 in Hammersmith.
The reg is C874CTR
It's a long shot but I've got some faith in the power of #cartwitter to find it.
Send it to everyone you know!
Our friend Peter Grunert’s stunning LHD 911 Carerra has been stolen, reg C874CTR last seen Gliddon Road in London on 20th November on a TFL camera please share people to make this car too hot to handle pls RP
𝐔𝐑𝐆𝐄𝐍𝐓𝐋𝐘 𝐑𝐄𝐐𝐔𝐈𝐑𝐄𝐃: 𝐓𝐇𝐄 𝐏𝐎𝐖𝐄𝐑 𝐎𝐅 𝐓𝐇𝐄 𝐈𝐍𝐓𝐄𝐑𝐍𝐄𝐓 😡
These two Escort rally cars were stolen last night from Preston along with a flat trailer and RS3 shuttle.
Please share these photos far and wide; on every car page known to man.
Please RT 🙏🏻
Dear @waitrose, I've just tried to replace my worn out 'bag-for-life' only to be told that was no longer something you do. No apology, no alternative suggested. I bought the bag under the agreement it would be replaced, as stated on the bag. Seems like a breach of contract to me.