Hyundai i20 review

Overview

The 2021 i20 SE Connect combines the third-generation BC3's five-door layout with Hyundai's 100 PS turbo petrol engine and a six-speed intelligent manual transmission. The 48 V system assists the petrol powertrain; this is neither a full hybrid nor a car you plug in. Its appeal is a useful everyday specification without requiring the highest trim. This review is restricted to the original UK mild-hybrid manual, not the DCT automatic or the subsequent non-hybrid facelift. The electronic-clutch arrangement and battery packaging deserve particular attention because both distinguish it from a conventional small petrol hatchback.

Exterior and interior

The original BC3 is a visually sharper car than its predecessor, but the cabin is best understood as practical equipment wrapped in fairly ordinary materials. SE Connect has a digital instrument display and an eight-inch media screen, with controls you should try before assuming the arrangement suits you. Check seat adjustment, steering-wheel reach and rear visibility from your actual driving position. Inspect the edges of the seats, door panels and boot lining for intensive use. A clean touchscreen does not establish careful ownership, and attractive wheels should not distract from mismatched tyres or poorly repaired bodywork.

Practicality

Five doors make the i20 easier to use with passengers than a three-door city car, but this specific 48 V version has a luggage-space caveat. Hyundai's UK launch sheet lists 352 litres generically, while the manufacturer's November 2020 German powertrain table specifies 262 litres for mild-hybrid versions versus 352 for non-hybrids. RoadMatch uses the conservative, battery-specific 262-litre figure and flags the discrepancy rather than claiming a resolved UK measurement. Inspect the underfloor arrangement and bring the pushchair or bags you actually use. Rear-seat comfort, child-restraint access and folded-seat load shape remain more useful than a disputed headline volume. Compare rear passenger comfort with the bench occupied and luggage packed, rather than assessing each area separately. A smaller mild-hybrid load bay may encourage roof-box use, but the approved bars, weight limit and fuel-cost effect need considering first. Inspect the parcel shelf, floor supports and seat-release handles for missing parts, then demonstrate folding and secure refitting. Check that charging sockets remain accessible behind a child restraint. The i20's compact footprint is a benefit only if you can live with the specific battery-related luggage compromise on ordinary school runs and longer journeys.

Driving experience

Consulted independent generation assessments support treating this i20 as an everyday all-rounder rather than a miniature sporting car. The iMT still asks you to choose gears, although its clutch control is electronically managed. Demonstrate pulling away, reversing, parking on a slope and restarting after a stop before deciding you are comfortable with it. Include a broken-surface road and a safe faster section on the test drive. Any inconsistent bite, warning message or unusual hesitation needs diagnosis. Later reviews sometimes cover a non-hybrid engine revision, so their exact operating behaviour should not be assumed identical.

Performance

The period UK specification gives the 100 PS manual a 10.4-second 0–62 mph time; the DCT's figure is different. Output is approximately 99 bhp, enough for ordinary mixed journeys without making this a performance-car recommendation. The turbo engine's useful response is more relevant than maximum speed, particularly when joining a busy road with passengers aboard. Try a sensible hill in an appropriate gear rather than judging only an empty, flat-road demonstration. Mild-hybrid assistance is not a promise of electric-only commuting. Buyers who want effortless acceleration at every load should compare a more powerful alternative.

Fuel economy

Hyundai's original UK table quotes 55.4 mpg WLTP for this SE Connect powertrain, a laboratory comparison rather than a guaranteed ownership result. The small turbo engine and 48 V system do not cancel the cost of short cold journeys, high-speed running or an impatient driving style. Use the published number to compare like-for-like test cycles, then budget around your route and annual mileage. Check correct tyre sizes, pressures and servicing, and ask how the seller's average was recorded. A later non-hybrid brochure or a DCT ownership report is not an exact fuel forecast for this manual.

Reliability

RoadMatch's moderate-confidence ownership judgement recognises the relatively accessible hatchback format but also the electronic clutch and additional 48 V hardware. It is not a measured failure rate. Ask for itemised maintenance and evidence of any warning-light diagnosis rather than accepting a stamped book alone. Check both low-voltage systems, cold-start running, oil level and clutch behaviour, and have the brakes and suspension inspected. Repeated urban use can produce wear that low mileage conceals. Confirm the first registration date and warranty terms; use GOV.UK's recall check and Hyundai's VIN-specific records to establish outstanding or completed work.

Safety

The official 2021 Euro NCAP i20 record explains that its assessment derives from the related Bayon, with supporting information reviewed for applicability. It lists the 1.0 T-GDi 48 V i20, including right-hand-drive applicability; this should not be presented as an entirely separate i20 crash-test programme. No ratings, percentages or artwork are reused here. The UK launch specification distinguishes base forward-collision assistance from higher-trim functions such as cyclist detection. Check the fitted system, sensor area and warning display, and inspect seatbelts and child-restraint installation. Never attempt to trigger an emergency-braking event during a viewing.

Technology and features

SE Connect supplies the practical combination of Apple CarPlay, Android Auto, rear parking sensors, a reversing camera and ordinary cruise control. Heated seats and the upper-trim connected-navigation package are not silently counted as standard. Pair your own phone and test the camera picture, steering-wheel controls and instrument display in real conditions. Inspect charging sockets and ask whether software updates or replaced components are documented. Manual air-conditioning also merits a proper cooling test. A seller's generic advert may list every option available to the range, so validate equipment on the car rather than relying on the trim badge.

Running costs

The £8,500–£12,500 purchase band is a RoadMatch planning estimate dated 3 October 2026, not a live market valuation. An illustrative 8,000 miles at 48 mpg and £1.50 per litre uses about £1,136 of petrol. Allow £200 for tax and £500–£900 for routine service, MOT and wear, giving roughly £1,850–£2,250 before insurance, depreciation, finance and major repairs. Verify registration-specific tax and obtain a personal insurance quote. Electronic-clutch or 48 V-system repairs fall outside that routine allowance, so keep a reserve rather than assuming a modest engine guarantees a modest bill.

Advantages and disadvantages