杏吧原创

鈥淐ourtesy is a part of good motoring,鈥� says Alexandra Ohene of north London,
somewhat optimistically (GB 2 315 354). But it鈥檚 often difficult for other
drivers to see a wave acknowledging their kindness, so people often flash their
lights instead, which can distract others on the road. The answer, says Ohene,
is the 鈥渁utoflash鈥�, a small screen controlled by a switch on the steering column
that displays a message in the rear window, such as 鈥淭hank you鈥�. Some motorists
may want to display rather different messages.