Hanover, Germany - Popular rally car drivers in the 1970s and 1980s fitted an array of huge headlights to their front grilles.
But nowadays, additional front-grille lighting tends to be subtler and can also be used for older cars.
"Headlights on older cars are not as efficient as those on the new models," says Helmut Klein from the technical centre of Germany's automobile association (ADAC).
Additional lighting can be especially useful in complementing the range and circumference of standard headlights in these cars, according to Klein.