diff --git a/src/components/order-form/form/car-number/car-number-input.tsx b/src/components/order-form/form/car-number/car-number-input.tsx
index 5d3daa1..6a6dcd9 100644
--- a/src/components/order-form/form/car-number/car-number-input.tsx
+++ b/src/components/order-form/form/car-number/car-number-input.tsx
@@ -15,7 +15,7 @@ export const CarNumberInput = forwardRef<HTMLInputElement, InputProps>(
           // @ts-ignore
           onChange?.(formattedValue);
         }}
-        maxLength={8}
+        maxLength={12}
       />
     );
   },
diff --git a/src/components/order-form/form/car-number/helper.ts b/src/components/order-form/form/car-number/helper.ts
index 2efb4dc..21a5525 100644
--- a/src/components/order-form/form/car-number/helper.ts
+++ b/src/components/order-form/form/car-number/helper.ts
@@ -3,11 +3,11 @@ const VALID_LETTER = 'а|в|е|к|м|н|о|р|с|т|у|х';
 const invalidCharsRe = new RegExp(`[^(${VALID_LETTER})0-9]`, 'gi');
 const cleanValue = (value: string) => value.replace(invalidCharsRe, '');
 
-const validCarNumberInputRe = new RegExp(`^([${VALID_LETTER}]{1}|$)((?:[0-9]|$)(?:[0-9]|$)(?:[0-9]|$))([${VALID_LETTER}]{1,2}|$)$`, 'gi');
+const validCarNumberInputRe = new RegExp(`^([${VALID_LETTER}]{1}|$)((?:[0-9]|$)(?:[0-9]|$)(?:[0-9]|$))([${VALID_LETTER}]{1,2}|$)((?:[0-9]|$)(?:[0-9]|$)(?:[0-9]|$))$`, 'gi');
 const isValidInput = (cleanedValue: string) => validCarNumberInputRe.test(cleanedValue);
 
 const formatAsCarNumber = (cleanedValue: string) => {
-  return cleanedValue.replace(validCarNumberInputRe, (_, p1, p2, p3) => [p1, p2, p3].join(' ')).toUpperCase();
+  return cleanedValue.replace(validCarNumberInputRe, (_, p1, p2, p3, p4) => [p1, p2, p3, p4].join(' ')).toUpperCase();
 };
 const getWithoutLastChar = (value: string) => value.substring(0, value.length - 1);
 
@@ -25,7 +25,7 @@ export const handleInputChange = (value: string | undefined | null) => {
   return getWithoutLastChar(value).trim();
 };
 
-const validCarNumberRe = new RegExp(`^[${VALID_LETTER}][0-9]{3}[${VALID_LETTER}]{2}$`, 'i');
+const validCarNumberRe = new RegExp(`^[${VALID_LETTER}][0-9]{3}[${VALID_LETTER}]{2}[0-9]{2,3}$`, 'i');
 
 export const isValidCarNumber = (value: string) => {
   const cleanedValue = cleanValue(value);