Full-body vs partial PPF — how to decide where to draw the line

"Partial" is a coverage tier between front-end and full-body, but the exact panels included vary by installer. A typical partial wrap covers: full bonnet, full front bumper, full wings, full mirrors, headlights, A-pillars, roof, door cups, rocker panels and rear arches. What it does not cover: doors (full panels), rear quarter panels (full), boot lid, rear bumper. The logic: cover every panel that catches direct stone-chip impact at speed (bonnet, front, A-pillars, roof, arches) and every panel that catches sharp local impacts (door cups, rockers), leaving the body sides and rear unprotected. Partial typically runs £1,800-£3,500 versus full-body £3,500-£8,500 — roughly half the cost for 70-80 percent of the practical protection.

Full-body makes sense in these cases. One: high-value cars (£80k+) where the resale value is tightly tied to immaculate paint everywhere — partial wrap leaves visible film edges on door tops, which buyers and dealers notice and discount for. Two: cars with deep colours or pearl finishes (Saphire Black, Frozen White, Verde Mantis, Liquid Gold) where chips on rear quarters are very visible against the colour. Three: long keepers (10+ years) where rear-quarter and door swirl marks accumulate and can only be polished out so many times before the clearcoat thins. Four: matt finishes — bare matt paint scratches very easily and respraying matt is hard, so full matt PPF is genuinely worthwhile. Five: cars driven on rough or unsealed roads regularly, where stone-chip impact is not just front-end — rear arches and rockers take real damage too.

Partial is the right call for most owners most of the time. The economic case: 80 percent of stone-chip damage happens to the front 40 percent of the car (bonnet, bumper, wings, mirrors, headlights, A-pillars, roof front). Adding the high-impact partial panels (door cups, rockers, rear arches) takes you to roughly 90-95 percent of practical chip protection. The remaining 5-10 percent (door middles, rear quarter middles, rear bumper) takes much less impact during normal use and the protection vs cost ratio gets bad. For a car kept 5-7 years and driven mostly on motorways and urban roads, partial PPF protects the panels that matter and saves £2,000-£5,000 over full-body. Most owners regret going too cheap (track pack only) more than they regret going partial instead of full.

Bonnet: always film. Highest stone-chip impact area on any car. Front bumper: always film. Wings: always film. Mirrors: always film — chips on mirrors are very visible. Headlights: always film, plus the film here doubles as headlight protection (a cracked Tesla headlight is £2,000+). A-pillars: film if you do motorway miles — stones lift off the road and skip up the A-pillar. Roof: film if you have a deep colour or you do motorway miles or you live somewhere with grit kickup; skip if light colour and urban use. Door cups (the bit your hand grabs): always film if you film anything beyond the front — fingernail scratches accumulate fast here. Door panels (full): film for full-body, skip for partial. Rocker panels: film for partial — gravel kickup is brutal here. Rear arches: film for partial — rear-tyre kickup pebbles into the arch leading edge constantly. Rear quarters: film for full-body only. Boot lid: usually skipped except on full-body. Rear bumper: usually skipped — low-impact but does take parking dings. Charging port (EVs): smart £100-£200 add-on regardless of coverage tier.

A real concern with partial wraps. Modern PPF has very fine edges (sub-millimetre), so on a car parked at home the film line is invisible from any normal viewing distance. Up close in direct sun, you can see a faint line where the film ends, especially if the unfilmed paint has weathered slightly differently from the filmed paint. Five years on, the film line can be more visible because the unfilmed paint has accumulated very slight micro-marring while the filmed paint stays factory-fresh. For most owners this is not a real issue. For show-car owners or anyone parking at car meets where people inspect closely, full-body avoids the edge concern entirely. Where edges show most: the trailing edge of the bonnet against the windscreen, the rear arch line against the door, and any visible cut across a flat panel. Good installers minimise visible edges by tucking under panel gaps wherever possible.

A reasonable hybrid strategy: partial PPF at year 0, then add the missing panels at year 3-5 if you decide to keep the car longer. This works because: PPF lasts 10-12 years, so the partial film is mid-life when you upgrade and the unfilmed panels can be added without disturbing the existing film. Costs: partial £2,500 at year 0, plus rear quarters and doors added at year 3 for £1,500-£2,200, totalling £4,000-£4,700 — roughly the same as full-body at year 0 but spread over time. Watch out for: the unfilmed panels will have weathered slightly differently from the filmed panels, so the new film over old paint may not perfectly match the gloss of the existing film over factory paint. The mismatch is small but visible to picky owners.

Full-body PPF typically supports a £500-£2,000 resale premium on premium cars — a dealer or private buyer will pay more for "PPF protected from new" because they know the paint underneath is factory-condition. Partial PPF supports a smaller premium (£200-£1,000) and is harder to advertise convincingly because buyers ask "which panels are filmed?". Track pack alone supports almost no resale premium. The transferable warranty is a real selling point — a 3-year-old car with 7 years of XPEL warranty remaining is genuinely more valuable than the same car without. If resale value is a strong consideration, this tilts the calculation towards full-body for premium cars and partial-or-better for mainstream cars.