Why Don’t Sedans Have Rear Windshield Wipers?
When driving on the road or choosing a vehicle from a Car Rental provider, you may notice that SUVs and hatchbacks almost always come equipped with a rear windshield wiper. However, when it comes to sedans, most standard four-door models do not have one. Many people assume this is simply a cost-saving measure by automakers or a result of different vehicle designs. In reality, there are scientific and aerodynamic reasons behind this design choice. If you are considering a Rental Car for your next trip, understanding this interesting automotive feature can be quite useful.
Looking at the exterior design of a sedan, one of its key characteristics is the smoothly sloping rear windshield that extends seamlessly toward the trunk lid. This design plays an important role in airflow management.
When you drive a sedan from a Car Rental service at moderate or high speeds, air flows from the roof down across the rear windshield and over the trunk in a continuous stream. This airflow naturally helps push away rainwater, water droplets, and moisture from the rear glass. Because the aerodynamic shape of a sedan already assists in keeping the rear window relatively clear, manufacturers often see no need to install a rear windshield wiper, resulting in a cleaner and more elegant design.
Why SUVs Need Rear Windshield Wipers
Now let’s compare that with hatchbacks, SUVs, and MPVs. Nearly all vehicles in these categories come equipped with rear windshield wipers from the factory. The primary reason is their upright rear-end design, often referred to as a “flat-back” or “square-back” shape. Unlike sedans, the airflow traveling over the roof cannot smoothly continue down the rear window. Instead, it creates a turbulent air vortex behind the vehicle.
This swirling airflow acts almost like a vacuum, pulling dust, dirt, mud, and water droplets from the road surface back onto the rear glass. As a result, the rear window becomes dirty much more quickly. Without a rear windshield wiper, visibility through the rearview mirror could be significantly reduced, creating a potential safety hazard.
Now that the mystery of rear windshield wipers has been solved, you may be planning your next trip or looking for a long-term transportation solution. Whether you need a daily rental or a monthly vehicle plan, choosing a trusted Car Rental company is essential for a safe and comfortable experience.
If you are looking for a well-maintained sedan, ECOCAR RENT-A-CAR is an excellent choice. With more than 13 years of experience, the company is legally registered with the Department of Business Development and has earned a strong reputation in Thailand’s vehicle rental industry.
Head Office Don Mueang Car Rental
Located at 279/57 Vibhavadi Rangsit Road, Sanambin Subdistrict, Don Mueang District, Bangkok 10210
Opening hours 0800 – 2000 hours Everyday
Call center 02 – 002 – 4606
092-284-8660 / 090-638-4888 / 086-993-3082
Line ID : @ecocar
Email : info@thairentecocar.com
WhatsApp : 0869933082
Siam Commercial Bank
Account number : 605-2588466
Account name : Thai Rent Eco Car Co., Ltd.
Swift - code เลขที่ SICOTHBK
Siam Commercial Bank Public Company Limited, Ongkharak Branch
Category : Bank
Address 439 Moo 1, Rangsit-Nakhon Nayok Road, Ongkharak Subdistrict, Ongkharak District Nakhon Nayok Province 26120 Telephone 037-381-258
Thai Rent Eco Car Co., Ltd. Head Office Taxpayer No. 0105556003679 No. 279/57 Grand I Design Village Vibhavadi Rangsit Road, Sanam Bin Subdistrict Don Mueang District, Bangkok 10210
Call 02-0024606
Vibhavadi Rangsit Road
**Read** Rental contract conditions (click)
