4. Owner of dealership Marcel del Arbol at computer
5. SOUNDBITE (German) Marcel del Arbol, car dealership owner:
"The prices (for diesel cars), as well as the demand, are going down rapidly. The demand partially went down over 90 percent, the prices are down too - I would say around 25 percent. What happened today will bring down the prices even more. We have to wait and see where the demand is going, but I would say that it will come to a stop in sales. The trend was already there and it will go down even more."
6. Cutaway of cars
7. SOUNDBITE (German) Marcel del Arbol, car dealership owner:
"Used (diesel) cars can only be sold to eastern Europe, but only the used diesel cars that are a bit newer, Euro 4.5 or 6 (referring to European emission standards). But they (eastern Europeans) are buying for less, as the market is getting bigger all the time because there are more and more vehicles on the market. I always advise diesel drivers to keep driving their cars if they don't have to sell - a loss is only a loss after a sale. It's like on a Stock Exchange when equities are going down. I would drive a good car if I had it, I wouldn't burn the money. I tell them to keep driving, and let's see what happens. You still have a good car."
8. Cutaway pan of cars
9. SOUNDBITE (German) Marcel del Arbol, car dealership owner:
"We have to take a car. We cannot tell our clients 'we will not take your car,' but there is a deduction, and after today's verdict we have to recalculate that deduction. We are not that far just yet, but I think it will have to be another 10-15 percent that we have to deduct "
A German court ruled on Tuesday that cities can impose driving bans on diesel cars to combat air pollution, a decision that could affect millions of drivers and the country's powerful auto industry.
The Federal Administrative Court in Leipzig rejected an appeal brought by two German states against lower court decisions that suggested driving bans for particularly dirty diesel cars would be effective and should be considered.
Environmental campaigners had sued dozens of German cities, arguing that they have a duty to cut excessive air pollution to protect people's health.
Diesel cars emit nitrogen oxide, or NOx, that causes respiratory illnesses and thousands of premature deaths annually.
Officials warn it would be an administrative nightmare to enforce bans only on certain vehicles.
Judges said the two cities at the centre of the case — Stuttgart and Duesseldorf — can include diesel bans in their clean air plans, but have to ensure that any measures are proportionate to the goal of reducing emissions to the legal limit.
The ruling also foresees transition periods for the introduction of diesel bans.
Marcel del Arbol, who owns a car dealership in Frankfurt, said he has already seen a sharp decline in demand for used diesel vehicles, with prices dropping as a result.
He said he foresees a further plummeting in prices, and has urged existing diesel owners to continue driving their cars rather than trade them in and incur a considerable loss.
In a blow to car owners, presiding judge Andreas Korbmacher said cities won't be required to compensate drivers for being unable to use their diesel cars.
The value of diesel vehicles already took a severe hit when carmaker Volkswagen was found three years ago to have used in-car software to cheat on US diesel emissions tests.
The discovery resulted in large fines and costly buybacks for Volkswagen in the United States.
The German government has refrained from making automakers pay for selling cars with higher-than-advertised emissions.
But in a bid to avert driving bans, the government recently proposed several measures to reduce harmful emissions that included subsidising public transport and physically upgrading millions of vehicles.
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