2021 Hyundai I20 Premium Mhev T-GDI 1.0L Hybrid electric · MJ71 YAD

The 1.0-litre T-GDi mild-hybrid is officially capable of around 53 mpg on the WLTP combined cycle, and real-world figures in the mid-40s to low-50s are typical. Fuel costs will depend heavily on driving style, but a modest annual mileage of 5,000-6,000 miles should result in fuel bills of roughly £700-£900 at current pump prices. The 48V system provides modest torque-fill under acceleration but does not deliver dramatically better economy than the non-hybrid 1.0 T-GDi.

Road tax (VED) for this i20 sits in a low bracket thanks to its low CO2 output, costing around £20-£30 per year for standard rate renewals. Insurance is one of the i20's stronger selling points — it typically falls into groups 10-14, making it affordable for younger drivers and experienced motorists alike. Annual insurance premiums in the £350-£500 region are realistic for a standard-risk buyer.

Routine maintenance is inexpensive. Hyundai's fixed-price servicing scheme offers competitive rates, and parts for the i20 are widely available and affordable. Budget roughly £200-£300 per service, plus £100-£200 for tyres, brake pads and wear-and-tear items across a typical year. Total estimated annual running costs are around £1,300-£1,600 for a low-mileage owner.

The most important inspection point on this specific vehicle is hidden beneath the cosmetic body and sill covers noted on the 2024 MOT. These panels obscure the sills, underbody and certain mechanical components from view. A serious buyer should insist they are removed for inspection, or arrange for a ramp-based examination at a garage. Look for evidence of accident repair, rust starting at sill seams, and condition of suspension arms and anti-roll bar drop links.

The single MOT advisory mentioned a tyre with slight damage, cracking or perishing. On a 2021 car with 16,355 miles, the original tyres may still be fitted, and tyres older than five years should be replaced regardless of tread depth due to rubber degradation. Check the DOT date codes on all four tyres and inspect sidewalls and shoulders for hairline cracks. Also examine the spare wheel or tyre repair kit, as i20s of this era were sometimes supplied with a tyre mobility kit rather than a spare.

Finally, inspect the 48V mild-hybrid system components. The BSG (belt-driven starter-generator) unit, auxiliary lithium-ion battery and associated wiring should be checked for warning lights on the dashboard, smooth restart behaviour, and any stored diagnostic trouble codes. A Hyundai dealer or specialist with mild-hybrid diagnostic equipment is best placed to verify system health.