Hail is a parts problem, not just a panel problem
Oklahoma is at the centre of the region that gets the most damaging hail in the United States. Every spring produces storms that put dents in roofs and bonnets, and the body damage is what gets claimed.
What gets missed is everything made of clear plastic and everything made of thin aluminium fin.
Lamp lenses. Hail rarely shatters a modern polycarbonate headlight lens. It cracks it — sometimes finely enough that nobody sees it in a car park. Water then gets in, the reflector corrodes, the connector oxidises, and the unit fails properly a month later when nobody connects it to the storm.
Mirror housings and glass. Among the most commonly replaced parts after a storm, and on a modern car the housing carries the indicator, the heating element, the puddle lamp and sometimes a blind-spot module.
Condenser and radiator fins. These are the thinnest aluminium on the car and they sit at the very front. Hail flattens fins, which reduces the surface area available to reject heat. A car that cooled fine before a storm and runs warm in traffic afterwards has a flattened front end, not a failing thermostat.
Wind, all the time
Oklahoma is one of the windiest states, and it is not seasonal. Sustained crosswind on open highway means the car is being corrected continuously, which loads the steering, the tyres and the suspension bushings asymmetrically.
It is one of the reasons a highway car here can need an alignment without ever having hit anything, and it is why tyres wear on one shoulder more often than the tread pattern would predict.
Wind also drives grit. Dust and sand carried at speed abrade paint, pit glass and load air filters faster than any service interval anticipates.
Temperature swings that work everything
Oklahoma can move forty degrees in a day and a hundred degrees across the year. Summers reach the top of the scale; winters bring genuine ice storms.
Every material in the vehicle expands and contracts through that range daily. Seals and gaskets that would live a decade in a stable climate work far harder. Tyre pressures move enough between a cold dawn and a hot afternoon that a pressure set at either extreme is wrong at the other.
Batteries get the worst of both. Summer heat runs the chemical clock that destroys them; winter cold is what reveals the damage, on a morning when it is least convenient. Replace on age, before winter, not on failure.
Nothing inspects the car
Oklahoma has no periodic safety inspection and no general emissions testing. Brakes, suspension, steering, tyres and lights are checked by nobody but the owner.
Given hail, wind and ice, that makes an annual look-over with the wheels off the substitute — pad thickness measured rather than estimated, brake fluid tested for water, boots checked at full lock, and every lens inspected in daylight.
For a used car, look at the lenses and the condenser before the mileage. Hail history is not on a title and it is visible on a car if you know where to look.
Checked